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<title>[55786] branches/4.8: Grouped backports to the 4.8 branch.</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/55786">55786</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/55786","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2023-05-16 15:50:47 +0000 (Tue, 16 May 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 4.8 branch.
- Media: Prevent CSRF setting attachment thumbnails.
- Embeds: Add protocol validation for WordPress Embed code.
Merges <a href="https://core.trac.wordpress.org/changeset/55763">[55763]</a> and <a href="https://core.trac.wordpress.org/changeset/55764">[55764]</a> to the 4.8 branch.
Props dd32, isabel_brison, martinkrcho, matveb, ocean90, paulkevan, peterwilsoncc, timothyblynjacobs, xknown, youknowriad.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches48packagelockjson">branches/4.8/package-lock.json</a></li>
<li><a href="#branches48packagejson">branches/4.8/package.json</a></li>
<li><a href="#branches48srcwpadminaboutphp">branches/4.8/src/wp-admin/about.php</a></li>
<li><a href="#branches48srcwpadminincludesajaxactionsphp">branches/4.8/src/wp-admin/includes/ajax-actions.php</a></li>
<li><a href="#branches48srcwpincludesjsmediaviewsframevideodetailsjs">branches/4.8/src/wp-includes/js/media/views/frame/video-details.js</a></li>
<li><a href="#branches48srcwpincludesjswpembedjs">branches/4.8/src/wp-includes/js/wp-embed.js</a></li>
<li><a href="#branches48srcwpincludesmediaphp">branches/4.8/src/wp-includes/media.php</a></li>
<li><a href="#branches48srcwpincludesversionphp">branches/4.8/src/wp-includes/version.php</a></li>
<li><a href="#branches48testsphpunittestsajaxAttachmentsphp">branches/4.8/tests/phpunit/tests/ajax/Attachments.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="branches48packagelockjson"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/package-lock.json</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/package-lock.json 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/package-lock.json 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1,6 +1,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> {
</span><span class="cx" style="display: block; padding: 0 10px"> "name": "WordPress",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- "version": "4.8.21",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ "version": "4.8.22",
</ins><span class="cx" style="display: block; padding: 0 10px"> "lockfileVersion": 1,
</span><span class="cx" style="display: block; padding: 0 10px"> "requires": true,
</span><span class="cx" style="display: block; padding: 0 10px"> "dependencies": {
</span></span></pre></div>
<a id="branches48packagejson"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/package.json</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/package.json 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/package.json 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1,6 +1,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> {
</span><span class="cx" style="display: block; padding: 0 10px"> "name": "WordPress",
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- "version": "4.8.21",
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ "version": "4.8.22",
</ins><span class="cx" style="display: block; padding: 0 10px"> "description": "WordPress is web software you can use to create a beautiful website or blog.",
</span><span class="cx" style="display: block; padding: 0 10px"> "repository": {
</span><span class="cx" style="display: block; padding: 0 10px"> "type": "svn",
</span></span></pre></div>
<a id="branches48srcwpadminaboutphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/src/wp-admin/about.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/src/wp-admin/about.php 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/src/wp-admin/about.php 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -50,6 +50,26 @@
</span><span class="cx" style="display: block; padding: 0 10px"> printf(
</span><span class="cx" style="display: block; padding: 0 10px"> /* translators: %s: WordPress version number */
</span><span class="cx" style="display: block; padding: 0 10px"> __( '<strong>Version %s</strong> addressed some security issues.' ),
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ '4.8.22'
+ );
+ ?>
+ <?php
+ printf(
+ /* translators: %s: HelpHub URL */
+ __( 'For more information, see <a href="%s">the release notes</a>.' ),
+ sprintf(
+ /* translators: %s: WordPress version */
+ esc_url( __( 'https://wordpress.org/support/wordpress-version/version-%s/' ) ),
+ sanitize_title( '4.8.22' )
+ )
+ );
+ ?>
+ </p>
+ <p>
+ <?php
+ printf(
+ /* translators: %s: WordPress version number */
+ __( '<strong>Version %s</strong> addressed some security issues.' ),
</ins><span class="cx" style="display: block; padding: 0 10px"> '4.8.21'
</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="branches48srcwpadminincludesajaxactionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/src/wp-admin/includes/ajax-actions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/src/wp-admin/includes/ajax-actions.php 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/src/wp-admin/includes/ajax-actions.php 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2254,6 +2254,10 @@
</span><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">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( false === check_ajax_referer( 'set-attachment-thumbnail', '_ajax_nonce', false ) ) {
+ wp_send_json_error();
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $post_ids = array();
</span><span class="cx" style="display: block; padding: 0 10px"> // For each URL, try to find its corresponding post ID.
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( $_POST['urls'] as $url ) {
</span></span></pre></div>
<a id="branches48srcwpincludesjsmediaviewsframevideodetailsjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/src/wp-includes/js/media/views/frame/video-details.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/src/wp-includes/js/media/views/frame/video-details.js 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/src/wp-includes/js/media/views/frame/video-details.js 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -104,6 +104,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> wp.ajax.send( 'set-attachment-thumbnail', {
</span><span class="cx" style="display: block; padding: 0 10px"> data : {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ _ajax_nonce: wp.media.view.settings.nonce.setAttachmentThumbnail,
</ins><span class="cx" style="display: block; padding: 0 10px"> urls: urls,
</span><span class="cx" style="display: block; padding: 0 10px"> thumbnail_id: attachment.get( 'id' )
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre></div>
<a id="branches48srcwpincludesjswpembedjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/src/wp-includes/js/wp-embed.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/src/wp-includes/js/wp-embed.js 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/src/wp-includes/js/wp-embed.js 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -37,6 +37,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> var iframes = document.querySelectorAll( 'iframe[data-secret="' + data.secret + '"]' ),
</span><span class="cx" style="display: block; padding: 0 10px"> blockquotes = document.querySelectorAll( 'blockquote[data-secret="' + data.secret + '"]' ),
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ allowedProtocols = new RegExp( '^https?:$', 'i' ),
</ins><span class="cx" style="display: block; padding: 0 10px"> i, source, height, sourceURL, targetURL;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> for ( i = 0; i < blockquotes.length; i++ ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -72,6 +73,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> sourceURL.href = source.getAttribute( 'src' );
</span><span class="cx" style="display: block; padding: 0 10px"> targetURL.href = data.value;
</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 follow link if the protocol is in the allow list. */
+ if ( ! allowedProtocols.test( targetURL.protocol ) ) {
+ continue;
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> /* Only continue if link hostname matches iframe's hostname. */
</span><span class="cx" style="display: block; padding: 0 10px"> if ( targetURL.host === sourceURL.host ) {
</span><span class="cx" style="display: block; padding: 0 10px"> if ( document.activeElement === source ) {
</span></span></pre></div>
<a id="branches48srcwpincludesmediaphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/src/wp-includes/media.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/src/wp-includes/media.php 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/src/wp-includes/media.php 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -3435,8 +3435,9 @@
</span><span class="cx" style="display: block; padding: 0 10px"> /** This filter is documented in wp-admin/includes/media.php */
</span><span class="cx" style="display: block; padding: 0 10px"> 'captions' => ! apply_filters( 'disable_captions', '' ),
</span><span class="cx" style="display: block; padding: 0 10px"> 'nonce' => array(
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- 'sendToEditor' => wp_create_nonce( 'media-send-to-editor' ),
- 'wpRestApi' => wp_create_nonce( 'wp_rest' ),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ 'sendToEditor' => wp_create_nonce( 'media-send-to-editor' ),
+ 'wpRestApi' => wp_create_nonce( 'wp_rest' ),
+ 'setAttachmentThumbnail' => wp_create_nonce( 'set-attachment-thumbnail' ),
</ins><span class="cx" style="display: block; padding: 0 10px"> ),
</span><span class="cx" style="display: block; padding: 0 10px"> 'post' => array(
</span><span class="cx" style="display: block; padding: 0 10px"> 'id' => 0,
</span></span></pre></div>
<a id="branches48srcwpincludesversionphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/src/wp-includes/version.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/src/wp-includes/version.php 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/src/wp-includes/version.php 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -4,7 +4,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @global string $wp_version
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-$wp_version = '4.8.21-src';
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$wp_version = '4.8.22-src';
</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"> * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
</span></span></pre></div>
<a id="branches48testsphpunittestsajaxAttachmentsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/4.8/tests/phpunit/tests/ajax/Attachments.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/4.8/tests/phpunit/tests/ajax/Attachments.php 2023-05-16 15:50:15 UTC (rev 55785)
+++ branches/4.8/tests/phpunit/tests/ajax/Attachments.php 2023-05-16 15:50:47 UTC (rev 55786)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -109,4 +109,95 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertTrue( $response['success'] );
</span><span class="cx" style="display: block; padding: 0 10px"> $this->assertEquals( $expected, $response['data'] );
</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 test_wp_ajax_set_attachment_thumbnail_success() {
+ // Become an administrator.
+ $post = $_POST;
+ $user_id = self::factory()->user->create(
+ array(
+ 'role' => 'administrator',
+ 'user_login' => 'user_36578_administrator',
+ 'user_email' => 'user_36578_administrator@example.com',
+ )
+ );
+ wp_set_current_user( $user_id );
+ $_POST = array_merge( $_POST, $post );
+
+ // Upload the attachment itself.
+ $filename = DIR_TESTDATA . '/uploads/small-audio.mp3';
+ $contents = file_get_contents( $filename );
+
+ $upload = wp_upload_bits( wp_basename( $filename ), null, $contents );
+ $attachment = $this->_make_attachment( $upload );
+
+ // Upload the thumbnail.
+ $filename = DIR_TESTDATA . '/images/waffles.jpg';
+ $contents = file_get_contents( $filename );
+
+ $upload = wp_upload_bits( wp_basename( $filename ), null, $contents );
+ $thumbnail = $this->_make_attachment( $upload );
+
+ // Set up a default request.
+ $_POST['_ajax_nonce'] = wp_create_nonce( 'set-attachment-thumbnail' );
+ $_POST['thumbnail_id'] = $thumbnail;
+ $_POST['urls'] = array( wp_get_attachment_url( $attachment ) );
+
+ // Make the request.
+ try {
+ $this->_handleAjax( 'set-attachment-thumbnail' );
+ } catch ( WPAjaxDieContinueException $e ) {
+ unset( $e );
+ }
+
+ // Get the response.
+ $response = json_decode( $this->_last_response, true );
+
+ // Ensure everything is correct.
+ $this->assertTrue( $response['success'] );
+ }
+
+ public function test_wp_ajax_set_attachment_thumbnail_missing_nonce() {
+ // Become an administrator.
+ $post = $_POST;
+ $user_id = self::factory()->user->create(
+ array(
+ 'role' => 'administrator',
+ 'user_login' => 'user_36578_administrator',
+ 'user_email' => 'user_36578_administrator@example.com',
+ )
+ );
+ wp_set_current_user( $user_id );
+ $_POST = array_merge( $_POST, $post );
+
+ // Upload the attachment itself.
+ $filename = DIR_TESTDATA . '/uploads/small-audio.mp3';
+ $contents = file_get_contents( $filename );
+
+ $upload = wp_upload_bits( wp_basename( $filename ), null, $contents );
+ $attachment = $this->_make_attachment( $upload );
+
+ // Upload the thumbnail.
+ $filename = DIR_TESTDATA . '/images/waffles.jpg';
+ $contents = file_get_contents( $filename );
+
+ $upload = wp_upload_bits( wp_basename( $filename ), null, $contents );
+ $thumbnail = $this->_make_attachment( $upload );
+
+ // Set up a default request.
+ $_POST['thumbnail_id'] = $thumbnail;
+ $_POST['urls'] = array( wp_get_attachment_url( $attachment ) );
+
+ // Make the request.
+ try {
+ $this->_handleAjax( 'set-attachment-thumbnail' );
+ } catch ( WPAjaxDieContinueException $e ) {
+ unset( $e );
+ }
+
+ // Get the response.
+ $response = json_decode( $this->_last_response, true );
+
+ // Check that success is false without sending nonce.
+ $this->assertFalse( $response['success'] );
+ }
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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