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<title>[44051] branches/4.9/src: Multisite: Validate activation links.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/44051">44051</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/44051","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>peterwilsoncc</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2018-12-13 01:32:07 +0000 (Thu, 13 Dec 2018)</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'>Multisite: Validate activation links.
Merges <a href="https://core.trac.wordpress.org/changeset/44048">[44048]</a> to the 4.9 branch.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches49srcwpactivatephp">branches/4.9/src/wp-activate.php</a></li>
<li><a href="#branches49srcwpadminincludesclasswpscreenphp">branches/4.9/src/wp-admin/includes/class-wp-screen.php</a></li>
<li><a href="#branches49srcwpadminpostphp">branches/4.9/src/wp-admin/post.php</a></li>
<li><a href="#branches49srcwpincludesclasswpphp">branches/4.9/src/wp-includes/class-wp.php</a></li>
<li><a href="#branches49srcwpincludesmsdeprecatedphp">branches/4.9/src/wp-includes/ms-deprecated.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#branches49">branches/4.9/</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/4.9
</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/4.9 2018-12-13 01:29:42 UTC (rev 44050)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/4.9 2018-12-13 01:32:07 UTC (rev 44051)
</ins><a id="branches49"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/4.9</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/3.3:20543
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/3.4:21757
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.0:43988,43994,44014,44017
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/trunk:18512,42132,42134,42136,42138,42140,42144,42146,42148,42150,42152-42153,42155,42157,42159,42161,42163,42169,42171,42173,42175,42177,42181,42183,42185,42187,42189,42191,42193,42199,42203,42210,42214,42220,42222,42226,42242,42244,42247,42251,42256-42261,42350,42358,42362,42364-42368,42374,42388,42390,42401,42417,42421,42423-42425,42430,42432-42433,42437,42441,42443,42446-42447,42449,42451,42453,42457,42459,42462,42491,42521,42529,42531,42533,42536,42538,42541,42543,42545,42549,42566,42568,42570,42572,42574,42576,42579,42581-42582,42584-42585,42587-42588,42590,42592,42594-42595,42598-42599,42602,42604,42606,42611-42613,42615,42617,42624-42625,42639,42648,42652-42653,42665,42676,42687,42695,42697,42702,42711,42713,42719,42722,42726,42728,42739-42740,42744,42758,42772,42791-42792,42801,42814-42815,42817-42818,42823,42830,42837,42839,42841,42844,42851-42852,42860,42864,42881,42888-42889
,42892-42894,42930,42964,42967,42971-42972,42977-42978,42980-42982,42985-42987,42989,42992,42994-42995,42998-42999,43001-43004,43007-43008,43011-43012,43014-43015,43025,43027,43030,43032,43034,43036,43039,43042,43044-43049,43051-43063,43065,43081,43085,43087-43089,43091,43104,43116,43118,43120-43121,43123,43125-43126,43131-43132,43135,43137,43139,43145-43148,43150,43154-43155,43158,43160,43162,43166,43168,43170,43172,43175,43180-43181,43183-43185,43189,43191,43193,43195,43197,43199,43201,43203,43206,43208,43210-43212,43216,43218,43220,43222-43223,43226,43228,43230,43232,43234,43236,43238,43242-43243,43245-43246,43248-43251,43256,43259-43260,43263,43265,43267,43269,43274-43275,43278-43279,43282,43284,43286,43290-43293,43299,43303-43304,43313,43315,43317,43331,43337,43343,43350,43353,43356,43361-43363,43365,43367,43370-43371,43373-43376,43379,43388,43390,43435,43437,43439-43440,43446-43447,43451,43454,43457,43460,43462-43467,43469,43471,43475,43477-43478,43480,43486,43491,43493,43495,
43499,43504,43506,43508,43511-43513,43518,43525,43527,43529,43531,43541,43550,43559,43567,43580,43593,43597,43599,43609,43636,43638,43653,44021
</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:18512,42132,42134,42136,42138,42140,42144,42146,42148,42150,42152-42153,42155,42157,42159,42161,42163,42169,42171,42173,42175,42177,42181,42183,42185,42187,42189,42191,42193,42199,42203,42210,42214,42220,42222,42226,42242,42244,42247,42251,42256-42261,42350,42358,42362,42364-42368,42374,42388,42390,42401,42417,42421,42423-42425,42430,42432-42433,42437,42441,42443,42446-42447,42449,42451,42453,42457,42459,42462,42491,42521,42529,42531,42533,42536,42538,42541,42543,42545,42549,42566,42568,42570,42572,42574,42576,42579,42581-42582,42584-42585,42587-42588,42590,42592,42594-42595,42598-42599,42602,42604,42606,42611-42613,42615,42617,42624-42625,42639,42648,42652-42653,42665,42676,42687,42695,42697,42702,42711,42713,42719,42722,42726,42728,42739-42740,42744,42758,42772,42791-42792,42801,42814-42815,42817-42818,42823,42830,42837,42839,42841,42844,42851-42852,42860,42864,42881,42888-42889
,42892-42894,42930,42964,42967,42971-42972,42977-42978,42980-42982,42985-42987,42989,42992,42994-42995,42998-42999,43001-43004,43007-43008,43011-43012,43014-43015,43025,43027,43030,43032,43034,43036,43039,43042,43044-43049,43051-43063,43065,43081,43085,43087-43089,43091,43104,43116,43118,43120-43121,43123,43125-43126,43131-43132,43135,43137,43139,43145-43148,43150,43154-43155,43158,43160,43162,43166,43168,43170,43172,43175,43180-43181,43183-43185,43189,43191,43193,43195,43197,43199,43201,43203,43206,43208,43210-43212,43216,43218,43220,43222-43223,43226,43228,43230,43232,43234,43236,43238,43242-43243,43245-43246,43248-43251,43256,43259-43260,43263,43265,43267,43269,43274-43275,43278-43279,43282,43284,43286,43290-43293,43299,43303-43304,43313,43315,43317,43331,43337,43343,43350,43353,43356,43361-43363,43365,43367,43370-43371,43373-43376,43379,43388,43390,43435,43437,43439-43440,43446-43447,43451,43454,43457,43460,43462-43467,43469,43471,43475,43477-43478,43480,43486,43491,43493,43495,
43499,43504,43506,43508,43511-43513,43518,43525,43527,43529,43531,43541,43550,43559,43567,43580,43593,43597,43599,43609,43636,43638,43653,44021,44048
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches49srcwpactivatephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.9/src/wp-activate.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.9/src/wp-activate.php 2018-12-13 01:29:42 UTC (rev 44050)
+++ branches/4.9/src/wp-activate.php 2018-12-13 01:32:07 UTC (rev 44051)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -26,7 +26,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $key = '';
</span><span class="cx" style="display: block; padding: 0 10px"> $result = null;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-if ( ! empty( $_GET['key'] ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+if ( isset( $_GET['key'] ) && isset( $_POST['key'] ) && $_GET['key'] !== $_POST['key'] ) {
+ wp_die( __( 'A key value mismatch has been detected. Please follow the link provided in your activation email.' ), __( 'An error occurred during the activation' ), 400 );
+} elseif ( ! empty( $_GET['key'] ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> $key = $_GET['key'];
</span><span class="cx" style="display: block; padding: 0 10px"> } elseif ( ! empty( $_POST['key'] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $key = $_POST['key'];
</span></span></pre></div>
<a id="branches49srcwpadminincludesclasswpscreenphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.9/src/wp-admin/includes/class-wp-screen.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.9/src/wp-admin/includes/class-wp-screen.php 2018-12-13 01:29:42 UTC (rev 44050)
+++ branches/4.9/src/wp-admin/includes/class-wp-screen.php 2018-12-13 01:32:07 UTC (rev 44051)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -270,7 +270,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> switch ( $base ) {
</span><span class="cx" style="display: block; padding: 0 10px"> case 'post' :
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $_GET['post'] ) )
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( isset( $_GET['post'] ) && isset( $_POST['post_ID'] ) && (int) $_GET['post'] !== (int) $_POST['post_ID'] )
+ wp_die( __( 'A post ID mismatch has been detected.' ), __( 'Sorry, you are not allowed to edit this item.' ), 400 );
+ elseif ( isset( $_GET['post'] ) )
</ins><span class="cx" style="display: block; padding: 0 10px"> $post_id = (int) $_GET['post'];
</span><span class="cx" style="display: block; padding: 0 10px"> elseif ( isset( $_POST['post_ID'] ) )
</span><span class="cx" style="display: block; padding: 0 10px"> $post_id = (int) $_POST['post_ID'];
</span></span></pre></div>
<a id="branches49srcwpadminpostphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.9/src/wp-admin/post.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.9/src/wp-admin/post.php 2018-12-13 01:29:42 UTC (rev 44050)
+++ branches/4.9/src/wp-admin/post.php 2018-12-13 01:32:07 UTC (rev 44051)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -16,7 +16,9 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> wp_reset_vars( array( 'action' ) );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-if ( isset( $_GET['post'] ) )
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+if ( isset( $_GET['post'] ) && isset( $_POST['post_ID'] ) && (int) $_GET['post'] !== (int) $_POST['post_ID'] )
+ wp_die( __( 'A post ID mismatch has been detected.' ), __( 'Sorry, you are not allowed to edit this item.' ), 400 );
+elseif ( isset( $_GET['post'] ) )
</ins><span class="cx" style="display: block; padding: 0 10px"> $post_id = $post_ID = (int) $_GET['post'];
</span><span class="cx" style="display: block; padding: 0 10px"> elseif ( isset( $_POST['post_ID'] ) )
</span><span class="cx" style="display: block; padding: 0 10px"> $post_id = $post_ID = (int) $_POST['post_ID'];
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -38,6 +40,10 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $post_type_object = get_post_type_object( $post_type );
</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 ( isset( $_POST['post_type'] ) && $post && $post_type !== $_POST['post_type'] ) {
+ wp_die( __( 'A post type mismatch has been detected.' ), __( 'Sorry, you are not allowed to edit this item.' ), 400 );
+}
+
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( isset( $_POST['deletepost'] ) )
</span><span class="cx" style="display: block; padding: 0 10px"> $action = 'delete';
</span><span class="cx" style="display: block; padding: 0 10px"> elseif ( isset($_POST['wp-preview']) && 'dopreview' == $_POST['wp-preview'] )
</span></span></pre></div>
<a id="branches49srcwpincludesclasswpphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.9/src/wp-includes/class-wp.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.9/src/wp-includes/class-wp.php 2018-12-13 01:29:42 UTC (rev 44050)
+++ branches/4.9/src/wp-includes/class-wp.php 2018-12-13 01:32:07 UTC (rev 44051)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -289,6 +289,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( $this->public_query_vars as $wpvar ) {
</span><span class="cx" style="display: block; padding: 0 10px"> if ( isset( $this->extra_query_vars[$wpvar] ) )
</span><span class="cx" style="display: block; padding: 0 10px"> $this->query_vars[$wpvar] = $this->extra_query_vars[$wpvar];
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ elseif ( isset( $_GET[ $wpvar ] ) && isset( $_POST[ $wpvar ] ) && $_GET[ $wpvar ] !== $_POST[ $wpvar ] )
+ wp_die( __( 'A variable mismatch has been detected.' ), __( 'Sorry, you are not allowed to view this item.' ), 400 );
</ins><span class="cx" style="display: block; padding: 0 10px"> elseif ( isset( $_POST[$wpvar] ) )
</span><span class="cx" style="display: block; padding: 0 10px"> $this->query_vars[$wpvar] = $_POST[$wpvar];
</span><span class="cx" style="display: block; padding: 0 10px"> elseif ( isset( $_GET[$wpvar] ) )
</span></span></pre></div>
<a id="branches49srcwpincludesmsdeprecatedphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.9/src/wp-includes/ms-deprecated.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.9/src/wp-includes/ms-deprecated.php 2018-12-13 01:29:42 UTC (rev 44050)
+++ branches/4.9/src/wp-includes/ms-deprecated.php 2018-12-13 01:32:07 UTC (rev 44051)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -271,10 +271,13 @@
</span><span class="cx" style="display: block; padding: 0 10px"> _deprecated_function( __FUNCTION__, '3.3.0', 'wp_redirect()' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $ref = '';
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $_GET['ref'] ) )
- $ref = $_GET['ref'];
- if ( isset( $_POST['ref'] ) )
- $ref = $_POST['ref'];
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( isset( $_GET['ref'] ) && isset( $_POST['ref'] ) && $_GET['ref'] !== $_POST['ref'] ) {
+ wp_die( __( 'A variable mismatch has been detected.' ), __( 'Sorry, you are not allowed to view this item.' ), 400 );
+ } elseif ( isset( $_POST['ref'] ) ) {
+ $ref = $_POST[ 'ref' ];
+ } elseif ( isset( $_GET['ref'] ) ) {
+ $ref = $_GET[ 'ref' ];
+ }
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $ref ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $ref = wpmu_admin_redirect_add_updated_param( $ref );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -287,7 +290,9 @@
</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"> $url = wpmu_admin_redirect_add_updated_param( $url );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( isset( $_GET['redirect'] ) ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( isset( $_GET['redirect'] ) && isset( $_POST['redirect'] ) && $_GET['redirect'] !== $_POST['redirect'] ) {
+ wp_die( __( 'A variable mismatch has been detected.' ), __( 'Sorry, you are not allowed to view this item.' ), 400 );
+ } elseif ( isset( $_GET['redirect'] ) ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( substr( $_GET['redirect'], 0, 2 ) == 's_' )
</span><span class="cx" style="display: block; padding: 0 10px"> $url .= '&action=blogs&s='. esc_html( substr( $_GET['redirect'], 2 ) );
</span><span class="cx" style="display: block; padding: 0 10px"> } elseif ( isset( $_POST['redirect'] ) ) {
</span></span></pre>
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