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<title>[56877] branches/5.3/src: Grouped backports to the 5.3 branch.</title>
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--></style>
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<dl class="meta" style="font-size: 105%">
<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/56877">56877</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/56877","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>davidbaumwald</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-10-12 15:05:46 +0000 (Thu, 12 Oct 2023)</dd>
</dl>

<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Grouped backports to the 5.3 branch.
- Comments: Prevent users who can not see a post from seeing comments on it.
- Shortcodes: Restrict media shortcode ajax to certain type.
- REST API: Ensure no-cache headers are sent when methods are overridden.
- REST API: Limit `search_columns` for users without `list_users`.
- Prevent unintended behavior when certain objects are unserialized.

Merges <a href="https://core.trac.wordpress.org/changeset/56833">[56833]</a>, <a href="https://core.trac.wordpress.org/changeset/56834">[56834]</a>, <a href="https://core.trac.wordpress.org/changeset/56835">[56835]</a>, <a href="https://core.trac.wordpress.org/changeset/56836">[56836]</a>, and <a href="https://core.trac.wordpress.org/changeset/56838">[56838]</a> to the 5.3 branch.
Props xknown, jorbin, joehoyle, timothyblynjacobs, peterwilsoncc, ehtis, tykoted, antpb, rmccue.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branches53srcwpadminincludesajaxactionsphp">branches/5.3/src/wp-admin/includes/ajax-actions.php</a></li>
<li><a href="#branches53srcwpadminincludesclasswpcommentslisttablephp">branches/5.3/src/wp-admin/includes/class-wp-comments-list-table.php</a></li>
<li><a href="#branches53srcwpadminincludesclasswplisttablephp">branches/5.3/src/wp-admin/includes/class-wp-list-table.php</a></li>
<li><a href="#branches53srcwpadminincludesdashboardphp">branches/5.3/src/wp-admin/includes/dashboard.php</a></li>
<li><a href="#branches53srcwpincludesRequestsHooksphp">branches/5.3/src/wp-includes/Requests/Hooks.php</a></li>
<li><a href="#branches53srcwpincludesRequestsIRIphp">branches/5.3/src/wp-includes/Requests/IRI.php</a></li>
<li><a href="#branches53srcwpincludesRequestsSessionphp">branches/5.3/src/wp-includes/Requests/Session.php</a></li>
<li><a href="#branches53srcwpincludesclasswpblocktyperegistryphp">branches/5.3/src/wp-includes/class-wp-block-type-registry.php</a></li>
<li><a href="#branches53srcwpincludesclasswpthemephp">branches/5.3/src/wp-includes/class-wp-theme.php</a></li>
<li><a href="#branches53srcwpincludesmediaphp">branches/5.3/src/wp-includes/media.php</a></li>
<li><a href="#branches53srcwpincludesrestapiclasswprestserverphp">branches/5.3/src/wp-includes/rest-api/class-wp-rest-server.php</a></li>
<li><a href="#branches53srcwpincludesrestapiendpointsclasswprestuserscontrollerphp">branches/5.3/src/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php</a></li>
<li><a href="#branches53srcwpincludesrestapiphp">branches/5.3/src/wp-includes/rest-api.php</a></li>
<li><a href="#branches53srcwpincludesshortcodesphp">branches/5.3/src/wp-includes/shortcodes.php</a></li>
</ul>

<h3>Property Changed</h3>
<ul>
<li><a href="#branches53">branches/5.3/</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/5.3
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- branches/5.3 2023-10-12 15:04:07 UTC (rev 56876)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/5.3  2023-10-12 15:05:46 UTC (rev 56877)
</ins><a id="branches53"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/5.3</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/4.9:43557,43622
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43747,43751-43754,43758,43760-43765,43767-43770,43772,43774-43781,43783,43785,43790-43806,43808-43821,43825,43828,43830-43834,43836-43843,43846-43863,43867-43889,43891-43894,43897-43905,43908-43909,43911-43929,43931-43942,43946-43947,43949-43956,43959-43964,43967-43969,43988,43994,44014,44017,44047,44183,44185,44187-44206,44208-44213,44231-44232,44235,44248,44284,44287-44288
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.5:49373-49379,49381
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/trunk:46583,46605-46606,46613,46616,46656,46658,46665,46668,46676-46677,46682,46700-46703,46705,46707,46709,46711,46713,46715,46719-46720,46722,46724,46738,46745-46748,46753,46756-46758,46761-46762,46765,46770,46772,46779,46782,46786,46788,46793,46795,46797,46809,46813,46815,46817,46822,46824,46832,46835,46837-46838,46840,46842,46844-46845,46849,46851-46852,46854,46856,46858,46860,46862,46864,46866,46868,46870,46872,46874,46883,46885,46887,46902,46965-46969,46973-46974,46976,46981,46996-46997,46999-47001,47010,47040,47070-47073,47136,47289,47313,47318,47341,47404,47412,47418,47633-47638,47730,47790,47867,47872-47873,47887,47889,47947-47951,48213,48241,48338,48341,48705,49162,49168-49169,49175,49204,49227-49228,49244,49306,49335,49362,49369,49371,49380,49382-49388,49452,49548,49636,49779,49781-49784,49786,49836,49876,49933,49937-49940,49983,49989,50017,50126,50176,50185,50192,50267-50268
 ,50285,50298-50299,50379,50387,50413,50416,50432,50435-50436,50441-50444,50446,50473-50474,50476,50479,50485-50487,50545,50579,50590,50598,50670,50704,50796,50799,50930,50940-50941,50984-50985,51341,51355,51426,51498,51511,51535,51559-51560,51740,51810-51813,51828,51883,51921,51924-51925,51937,52002,52130,52183,52233,52412,52454-52457,52844,53112,53581-53582,53592,53736-53737,53940,53947,53958-53960,54039,54096,54108,54293,54313,54322,54342-54343,54373,54511,54521-54530,54541,54649-54651,54674,54750,54852,54968,55152,55350,55487
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/trunk:46583,46605-46606,46613,46616,46656,46658,46665,46668,46676-46677,46682,46700-46703,46705,46707,46709,46711,46713,46715,46719-46720,46722,46724,46738,46745-46748,46753,46756-46758,46761-46762,46765,46770,46772,46779,46782,46786,46788,46793,46795,46797,46809,46813,46815,46817,46822,46824,46832,46835,46837-46838,46840,46842,46844-46845,46849,46851-46852,46854,46856,46858,46860,46862,46864,46866,46868,46870,46872,46874,46883,46885,46887,46902,46965-46969,46973-46974,46976,46981,46996-46997,46999-47001,47010,47040,47070-47073,47136,47289,47313,47318,47341,47404,47412,47418,47633-47638,47730,47790,47867,47872-47873,47887,47889,47947-47951,48213,48241,48338,48341,48705,49162,49168-49169,49175,49204,49227-49228,49244,49306,49335,49362,49369,49371,49380,49382-49388,49452,49548,49636,49779,49781-49784,49786,49836,49876,49933,49937-49940,49983,49989,50017,50126,50176,50185,50192,50267-50268
 ,50285,50298-50299,50379,50387,50413,50416,50432,50435-50436,50441-50444,50446,50473-50474,50476,50479,50485-50487,50545,50579,50590,50598,50670,50704,50796,50799,50930,50940-50941,50984-50985,51341,51355,51426,51498,51511,51535,51559-51560,51740,51810-51813,51828,51883,51921,51924-51925,51937,52002,52130,52183,52233,52412,52454-52457,52844,53112,53581-53582,53592,53736-53737,53940,53947,53958-53960,54039,54096,54108,54293,54313,54322,54342-54343,54373,54511,54521-54530,54541,54649-54651,54674,54750,54852,54968,55152,55350,55487,56833-56836,56838
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches53srcwpadminincludesajaxactionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-admin/includes/ajax-actions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-admin/includes/ajax-actions.php       2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-admin/includes/ajax-actions.php 2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3735,6 +3735,22 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        $shortcode = wp_unslash( $_POST['shortcode'] );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        // Only process previews for media related shortcodes:
+       $found_shortcodes = get_shortcode_tags_in_content( $shortcode );
+       $media_shortcodes = array(
+               'audio',
+               'embed',
+               'playlist',
+               'video',
+               'gallery',
+       );
+
+       $other_shortcodes = array_diff( $found_shortcodes, $media_shortcodes );
+
+       if ( ! empty( $other_shortcodes ) ) {
+               wp_send_json_error();
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         if ( ! empty( $_POST['post_ID'] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                $post = get_post( (int) $_POST['post_ID'] );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3741,7 +3757,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        // the embed shortcode requires a post
</span><span class="cx" style="display: block; padding: 0 10px">        if ( ! $post || ! current_user_can( 'edit_post', $post->ID ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                if ( 'embed' === $shortcode ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         if ( in_array( 'embed', $found_shortcodes, true ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px">                         wp_send_json_error();
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px">        } else {
</span></span></pre></div>
<a id="branches53srcwpadminincludesclasswpcommentslisttablephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-admin/includes/class-wp-comments-list-table.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-admin/includes/class-wp-comments-list-table.php       2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-admin/includes/class-wp-comments-list-table.php 2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -559,6 +559,19 @@
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px">                $this->user_can = current_user_can( 'edit_comment', $comment->comment_ID );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                $edit_post_cap = $post ? 'edit_post' : 'edit_posts';
+               if (
+                       current_user_can( $edit_post_cap, $comment->comment_post_ID ) ||
+                       (
+                               empty( $post->post_password ) &&
+                               current_user_can( 'read_post', $comment->comment_post_ID )
+                       )
+               ) {
+                       // The user has access to the post
+               } else {
+                       return false;
+               }
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 echo "<tr id='comment-$comment->comment_ID' class='$the_comment_class'>";
</span><span class="cx" style="display: block; padding: 0 10px">                $this->single_row_columns( $comment );
</span><span class="cx" style="display: block; padding: 0 10px">                echo "</tr>\n";
</span></span></pre></div>
<a id="branches53srcwpadminincludesclasswplisttablephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-admin/includes/class-wp-list-table.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-admin/includes/class-wp-list-table.php        2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-admin/includes/class-wp-list-table.php  2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -682,7 +682,20 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        $pending_comments_number
</span><span class="cx" style="display: block; padding: 0 10px">                );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                // No comments at all.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $post_object   = get_post( $post_id );
+               $edit_post_cap = $post_object ? 'edit_post' : 'edit_posts';
+               if (
+                       current_user_can( $edit_post_cap, $post_id ) ||
+                       (
+                               empty( $post_object->post_password ) &&
+                               current_user_can( 'read_post', $post_id )
+                       )
+               ) {
+                       // The user has access to the post and thus can see comments
+               } else {
+                       return false;
+               }
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 if ( ! $approved_comments && ! $pending_comments ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        printf(
</span><span class="cx" style="display: block; padding: 0 10px">                                '<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">%s</span>',
</span></span></pre></div>
<a id="branches53srcwpadminincludesdashboardphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-admin/includes/dashboard.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-admin/includes/dashboard.php  2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-admin/includes/dashboard.php    2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1013,7 +1013,16 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                echo '<ul id="the-comment-list" data-wp-lists="list:comment">';
</span><span class="cx" style="display: block; padding: 0 10px">                foreach ( $comments as $comment ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                        _wp_dashboard_recent_comments_row( $comment );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                 $comment_post = get_post( $comment->comment_post_ID );
+                       if (
+                               current_user_can( 'edit_post', $comment->comment_post_ID ) ||
+                               (
+                                       empty( $comment_post->post_password ) &&
+                                       current_user_can( 'read_post', $comment->comment_post_ID )
+                               )
+                       ) {
+                               _wp_dashboard_recent_comments_row( $comment );
+                       }
</ins><span class="cx" style="display: block; padding: 0 10px">                 }
</span><span class="cx" style="display: block; padding: 0 10px">                echo '</ul>';
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span></span></pre></div>
<a id="branches53srcwpincludesRequestsHooksphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/Requests/Hooks.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/Requests/Hooks.php   2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/Requests/Hooks.php     2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -65,4 +65,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                return true;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-}
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of file
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+       public function __wakeup() {
+               throw new \LogicException( __CLASS__ . ' should never be unserialized' );
+       }
+}
</ins></span></pre></div>
<a id="branches53srcwpincludesRequestsIRIphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/Requests/IRI.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/Requests/IRI.php     2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/Requests/IRI.php       2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -703,6 +703,20 @@
</span><span class="cx" style="display: block; padding: 0 10px">                return true;
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        public function __wakeup() {
+               $class_props = get_class_vars( __CLASS__ );
+               $string_props = array( 'scheme', 'iuserinfo', 'ihost', 'port', 'ipath', 'iquery', 'ifragment' );
+               $array_props = array( 'normalization' );
+               foreach ( $class_props as $prop => $default_value ) {
+                       if ( in_array( $prop, $string_props, true ) && ! is_string( $this->$prop ) ) {
+                               throw new UnexpectedValueException();
+                       } elseif ( in_array( $prop, $array_props, true ) && ! is_array( $this->$prop ) ) {
+                               throw new UnexpectedValueException();
+                       }
+                       $this->$prop = null;
+               }
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         /**
</span><span class="cx" style="display: block; padding: 0 10px">         * Set the entire IRI. Returns true on success, false on failure (if there
</span><span class="cx" style="display: block; padding: 0 10px">         * are any invalid characters).
</span></span></pre></div>
<a id="branches53srcwpincludesRequestsSessionphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/Requests/Session.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/Requests/Session.php 2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/Requests/Session.php   2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -227,6 +227,10 @@
</span><span class="cx" style="display: block; padding: 0 10px">                return Requests::request_multiple($requests, $options);
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        public function __wakeup() {
+               throw new \LogicException( __CLASS__ . ' should never be unserialized' );
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         /**
</span><span class="cx" style="display: block; padding: 0 10px">         * Merge a request's data with the default data
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span></span></pre></div>
<a id="branches53srcwpincludesclasswpblocktyperegistryphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/class-wp-block-type-registry.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/class-wp-block-type-registry.php     2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/class-wp-block-type-registry.php       2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -154,6 +154,20 @@
</span><span class="cx" style="display: block; padding: 0 10px">                return isset( $this->registered_block_types[ $name ] );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        public function __wakeup() {
+               if ( ! $this->registered_block_types ) {
+                       return;
+               }
+               if ( ! is_array( $this->registered_block_types ) ) {
+                       throw new UnexpectedValueException();
+               }
+               foreach ( $this->registered_block_types as $value ) {
+                       if ( ! $value instanceof WP_Block_Type ) {
+                               throw new UnexpectedValueException();
+                       }
+               }
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         /**
</span><span class="cx" style="display: block; padding: 0 10px">         * Utility method to retrieve the main instance of the class.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span></span></pre></div>
<a id="branches53srcwpincludesclasswpthemephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/class-wp-theme.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/class-wp-theme.php   2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/class-wp-theme.php     2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -672,6 +672,28 @@
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        /**
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         * Perform reinitialization tasks.
+        *
+        * Prevents a callback from being injected during unserialization of an object.
+        *
+        * @return void
+        */
+       public function __wakeup() {
+               if ( $this->parent && ! $this->parent instanceof self ) {
+                       throw new UnexpectedValueException();
+               }
+               if ( $this->headers && ! is_array( $this->headers ) ) {
+                       throw new UnexpectedValueException();
+               }
+               foreach ( $this->headers as $value ) {
+                       if ( ! is_string( $value ) ) {
+                               throw new UnexpectedValueException();
+                       }
+               }
+               $this->headers_sanitized = array();
+       }
+
+       /**
</ins><span class="cx" style="display: block; padding: 0 10px">          * Adds theme data to cache.
</span><span class="cx" style="display: block; padding: 0 10px">         *
</span><span class="cx" style="display: block; padding: 0 10px">         * Cache entries keyed by the theme and the type of data.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1656,4 +1678,16 @@
</span><span class="cx" style="display: block; padding: 0 10px">        private static function _name_sort_i18n( $a, $b ) {
</span><span class="cx" style="display: block; padding: 0 10px">                return strnatcasecmp( $a->name_translated, $b->name_translated );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+       private static function _check_headers_property_has_correct_type( $headers ) {
+               if ( ! is_array( $headers ) ) {
+                       return false;
+               }
+               foreach ( $headers as $key => $value ) {
+                       if ( ! is_string( $key ) || ! is_string( $value ) ) {
+                               return false;
+                       }
+               }
+               return true;
+       }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre></div>
<a id="branches53srcwpincludesmediaphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/media.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/media.php    2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/media.php      2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1872,7 +1872,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        $attachments[ $val->ID ] = $_attachments[ $key ];
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px">        } elseif ( ! empty( $atts['exclude'] ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $attachments = get_children(
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $post_parent_id = $id;
+               $attachments    = get_children(
</ins><span class="cx" style="display: block; padding: 0 10px">                         array(
</span><span class="cx" style="display: block; padding: 0 10px">                                'post_parent'    => $id,
</span><span class="cx" style="display: block; padding: 0 10px">                                'exclude'        => $atts['exclude'],
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1884,7 +1885,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">                        )
</span><span class="cx" style="display: block; padding: 0 10px">                );
</span><span class="cx" style="display: block; padding: 0 10px">        } else {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                $attachments = get_children(
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+         $post_parent_id = $id;
+               $attachments    = get_children(
</ins><span class="cx" style="display: block; padding: 0 10px">                         array(
</span><span class="cx" style="display: block; padding: 0 10px">                                'post_parent'    => $id,
</span><span class="cx" style="display: block; padding: 0 10px">                                'post_status'    => 'inherit',
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1896,6 +1898,17 @@
</span><span class="cx" style="display: block; padding: 0 10px">                );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        if ( ! empty( $post_parent_id ) ) {
+               $post_parent = get_post( $post_parent_id );
+
+               // terminate the shortcode execution if user cannot read the post or password-protected
+               if (
+               ( ! is_post_publicly_viewable( $post_parent->ID ) && ! current_user_can( 'read_post', $post_parent->ID ) )
+               || post_password_required( $post_parent ) ) {
+                       return '';
+               }
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         if ( empty( $attachments ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                return '';
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2214,6 +2227,15 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $attachments         = get_children( $args );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+        if ( ! empty( $args['post_parent'] ) ) {
+               $post_parent = get_post( $id );
+
+               // terminate the shortcode execution if user cannot read the post or password-protected
+               if ( ! current_user_can( 'read_post', $post_parent->ID ) || post_password_required( $post_parent ) ) {
+                       return '';
+               }
+       }
+
</ins><span class="cx" style="display: block; padding: 0 10px">         if ( empty( $attachments ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                return '';
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span></span></pre></div>
<a id="branches53srcwpincludesrestapiclasswprestserverphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/rest-api/class-wp-rest-server.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/rest-api/class-wp-rest-server.php    2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/rest-api/class-wp-rest-server.php      2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -239,24 +239,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">                $this->send_header( 'Access-Control-Allow-Headers', 'Authorization, Content-Type' );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-                 * Send nocache headers on authenticated requests.
-                *
-                * @since 4.4.0
-                *
-                * @param bool $rest_send_nocache_headers Whether to send no-cache headers.
-                */
-               $send_no_cache_headers = apply_filters( 'rest_send_nocache_headers', is_user_logged_in() );
-               if ( $send_no_cache_headers ) {
-                       foreach ( wp_get_nocache_headers() as $header => $header_value ) {
-                               if ( empty( $header_value ) ) {
-                                       $this->remove_header( $header );
-                               } else {
-                                       $this->send_header( $header, $header_value );
-                               }
-                       }
-               }
-
-               /**
</del><span class="cx" style="display: block; padding: 0 10px">                  * Filters whether the REST API is enabled.
</span><span class="cx" style="display: block; padding: 0 10px">                 *
</span><span class="cx" style="display: block; padding: 0 10px">                 * @since 4.4.0
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -317,10 +299,12 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 * $_GET['_method']. If that is not set, we check for the HTTP_X_HTTP_METHOD_OVERRIDE
</span><span class="cx" style="display: block; padding: 0 10px">                 * header.
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                $method_overridden = false;
</ins><span class="cx" style="display: block; padding: 0 10px">                 if ( isset( $_GET['_method'] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $request->set_method( $_GET['_method'] );
</span><span class="cx" style="display: block; padding: 0 10px">                } elseif ( isset( $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        $request->set_method( $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        $method_overridden = true;
</ins><span class="cx" style="display: block; padding: 0 10px">                 }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                $result = $this->check_authentication();
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -379,6 +363,28 @@
</span><span class="cx" style="display: block; padding: 0 10px">                 */
</span><span class="cx" style="display: block; padding: 0 10px">                $served = apply_filters( 'rest_pre_serve_request', false, $result, $request, $this );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                /**
+                * Filters whether to send nocache headers on a REST API request.
+                *
+                * @since 4.4.0
+                * @since 6.x.x Moved the block to catch the filter added on rest_cookie_check_errors() from rest-api.php
+                *
+                * @param bool $rest_send_nocache_headers Whether to send no-cache headers.
+                */
+               $send_no_cache_headers = apply_filters( 'rest_send_nocache_headers', is_user_logged_in() );
+
+               // send no cache headers if the $send_no_cache_headers is true
+               // OR if the HTTP_X_HTTP_METHOD_OVERRIDE is used but resulted a 4xx response code.
+               if ( $send_no_cache_headers || ( true === $method_overridden && strpos( $code, '4' ) === 0 ) ) {
+                       foreach ( wp_get_nocache_headers() as $header => $header_value ) {
+                               if ( empty( $header_value ) ) {
+                                       $this->remove_header( $header );
+                               } else {
+                                       $this->send_header( $header, $header_value );
+                               }
+                       }
+               }
+
</ins><span class="cx" style="display: block; padding: 0 10px">                 if ( ! $served ) {
</span><span class="cx" style="display: block; padding: 0 10px">                        if ( 'HEAD' === $request->get_method() ) {
</span><span class="cx" style="display: block; padding: 0 10px">                                return null;
</span></span></pre></div>
<a id="branches53srcwpincludesrestapiendpointsclasswprestuserscontrollerphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php        2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php  2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -283,6 +283,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">                if ( ! empty( $prepared_args['search'] ) ) {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                        if ( ! current_user_can( 'list_users' ) ) {
+                               $prepared_args['search_columns'] = array( 'ID', 'user_login', 'user_nicename', 'display_name' );
+                       }
</ins><span class="cx" style="display: block; padding: 0 10px">                         $prepared_args['search'] = '*' . $prepared_args['search'] . '*';
</span><span class="cx" style="display: block; padding: 0 10px">                }
</span><span class="cx" style="display: block; padding: 0 10px">                /**
</span></span></pre></div>
<a id="branches53srcwpincludesrestapiphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/rest-api.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/rest-api.php 2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/rest-api.php   2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -911,6 +911,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">        $result = wp_verify_nonce( $nonce, 'wp_rest' );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px">        if ( ! $result ) {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+                add_filter( 'rest_send_nocache_headers', '__return_true', 20 );
</ins><span class="cx" style="display: block; padding: 0 10px">                 return new WP_Error( 'rest_cookie_invalid_nonce', __( 'Cookie nonce is invalid' ), array( 'status' => 403 ) );
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span></span></pre></div>
<a id="branches53srcwpincludesshortcodesphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.3/src/wp-includes/shortcodes.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.3/src/wp-includes/shortcodes.php       2023-10-12 15:04:07 UTC (rev 56876)
+++ branches/5.3/src/wp-includes/shortcodes.php 2023-10-12 15:05:46 UTC (rev 56877)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -160,8 +160,46 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * Search content for shortcodes and filter shortcodes through their hooks.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Returns a list of registered shortcode names found in the given content.
</ins><span class="cx" style="display: block; padding: 0 10px">  *
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * Example usage:
+ *
+ *     get_shortcode_tags_in_content( '[audio src="file.mp3"][/audio] [foo] [gallery ids="1,2,3"]' );
+ *     // array( 'audio', 'gallery' )
+ *
+ * @since 6.3.2
+ *
+ * @param string $content The content to check.
+ * @return string[] An array of registered shortcode names found in the content.
+ */
+function get_shortcode_tags_in_content( $content ) {
+       if ( false === strpos( $content, '[' ) ) {
+               return array();
+       }
+
+       preg_match_all( '/' . get_shortcode_regex() . '/', $content, $matches, PREG_SET_ORDER );
+       if ( empty( $matches ) ) {
+               return array();
+       }
+
+       $tags = array();
+       foreach ( $matches as $shortcode ) {
+               $tags[] = $shortcode[2];
+
+               if ( ! empty( $shortcode[5] ) ) {
+                       $deep_tags = get_shortcode_tags_in_content( $shortcode[5] );
+                       if ( ! empty( $deep_tags ) ) {
+                               $tags = array_merge( $tags, $deep_tags );
+                       }
+               }
+       }
+
+       return $tags;
+}
+
+/**
+ * Searches content for shortcodes and filter shortcodes through their hooks.
+ *
</ins><span class="cx" style="display: block; padding: 0 10px">  * If there are no shortcode tags defined, then the content will be returned
</span><span class="cx" style="display: block; padding: 0 10px">  * without any filtering. This might cause issues when plugins are disabled but
</span><span class="cx" style="display: block; padding: 0 10px">  * the shortcode will still show up in the post or content.
</span></span></pre>
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