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<title>[49388] trunk/src: Themes: Ensure that only privileged users can set a background image when a theme is using the deprecated custom background page.</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/49388">49388</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/49388","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>desrosj</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2020-10-29 18:06:18 +0000 (Thu, 29 Oct 2020)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Themes: Ensure that only privileged users can set a background image when a theme is using the deprecated custom background page.
Props xknown, zieladam, peterwilsoncc, whyisjake.
Merges <a href="https://core.trac.wordpress.org/changeset/49379">[49379]</a> to trunk.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcjs_enqueuesadmincustombackgroundjs">trunk/src/js/_enqueues/admin/custom-background.js</a></li>
<li><a href="#trunksrcjs_enqueuesdeprecatedmediagalleryjs">trunk/src/js/_enqueues/deprecated/media-gallery.js</a></li>
<li><a href="#trunksrcwpadminincludesclasscustombackgroundphp">trunk/src/wp-admin/includes/class-custom-background.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#trunk">trunk/</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: trunk
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- trunk 2020-10-29 18:05:21 UTC (rev 49387)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ trunk 2020-10-29 18:06:18 UTC (rev 49388)
</ins><a id="trunk"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: trunk</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/3.4:21757
</span><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><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/branches/5.5:49373-49378,49381
</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">+/branches/5.5:49373-49379,49381
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="trunksrcjs_enqueuesadmincustombackgroundjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/admin/custom-background.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/admin/custom-background.js 2020-10-29 18:05:21 UTC (rev 49387)
+++ trunk/src/js/_enqueues/admin/custom-background.js 2020-10-29 18:06:18 UTC (rev 49388)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -126,11 +126,13 @@
</span><span class="cx" style="display: block; padding: 0 10px"> frame.on( 'select', function() {
</span><span class="cx" style="display: block; padding: 0 10px"> // Grab the selected attachment.
</span><span class="cx" style="display: block; padding: 0 10px"> var attachment = frame.state().get('selection').first();
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ var nonceValue = $( '#_wpnonce' ).val() || '';
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Run an Ajax request to set the background image.
</span><span class="cx" style="display: block; padding: 0 10px"> $.post( ajaxurl, {
</span><span class="cx" style="display: block; padding: 0 10px"> action: 'set-background-image',
</span><span class="cx" style="display: block; padding: 0 10px"> attachment_id: attachment.id,
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ _ajax_nonce: nonceValue,
</ins><span class="cx" style="display: block; padding: 0 10px"> size: 'full'
</span><span class="cx" style="display: block; padding: 0 10px"> }).done( function() {
</span><span class="cx" style="display: block; padding: 0 10px"> // When the request completes, reload the window.
</span></span></pre></div>
<a id="trunksrcjs_enqueuesdeprecatedmediagalleryjs"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/js/_enqueues/deprecated/media-gallery.js</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/js/_enqueues/deprecated/media-gallery.js 2020-10-29 18:05:21 UTC (rev 49387)
+++ trunk/src/js/_enqueues/deprecated/media-gallery.js 2020-10-29 18:06:18 UTC (rev 49388)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -11,7 +11,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Adds a click event handler to the element with a 'wp-gallery' class.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> $( 'body' ).bind( 'click.wp-gallery', function(e) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- var target = $( e.target ), id, img_size;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ var target = $( e.target ), id, img_size, nonceValue;
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( target.hasClass( 'wp-set-header' ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> // Opens the image to preview it full size.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -21,6 +21,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> // Sets the image as background of the theme.
</span><span class="cx" style="display: block; padding: 0 10px"> id = target.data( 'attachment-id' );
</span><span class="cx" style="display: block; padding: 0 10px"> img_size = $( 'input[name="attachments[' + id + '][image-size]"]:checked').val();
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ nonceValue = $( '#_wpnonce' ).val() && '';
</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"> * This Ajax action has been deprecated since 3.5.0, see custom-background.php
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -28,6 +29,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> jQuery.post(ajaxurl, {
</span><span class="cx" style="display: block; padding: 0 10px"> action: 'set-background-image',
</span><span class="cx" style="display: block; padding: 0 10px"> attachment_id: id,
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ _ajax_nonce: nonceValue,
</ins><span class="cx" style="display: block; padding: 0 10px"> size: img_size
</span><span class="cx" style="display: block; padding: 0 10px"> }, function() {
</span><span class="cx" style="display: block; padding: 0 10px"> var win = window.dialogArguments || opener || parent || top;
</span></span></pre></div>
<a id="trunksrcwpadminincludesclasscustombackgroundphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/class-custom-background.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/class-custom-background.php 2020-10-29 18:05:21 UTC (rev 49387)
+++ trunk/src/wp-admin/includes/class-custom-background.php 2020-10-29 18:06:18 UTC (rev 49388)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -581,6 +581,8 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * @deprecated 3.5.0
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> public function wp_set_background_image() {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ check_ajax_referer( 'custom-background' );
+
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( ! current_user_can( 'edit_theme_options' ) || ! isset( $_POST['attachment_id'] ) ) {
</span><span class="cx" style="display: block; padding: 0 10px"> exit;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span></span></pre>
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