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<title>[51675] trunk/src/wp-includes/kses.php: Security: Correct the inline docs for the `wp_kses_allowed_html` filter.</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/51675">51675</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/51675","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>johnbillion</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2021-08-26 19:27:59 +0000 (Thu, 26 Aug 2021)</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'>Security: Correct the inline docs for the `wp_kses_allowed_html` filter.
Props peterwilsoncc
Fixes <a href="https://core.trac.wordpress.org/ticket/53597">#53597</a></pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesksesphp">trunk/src/wp-includes/kses.php</a></li>
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<h3>Diff</h3>
<a id="trunksrcwpincludesksesphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/kses.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/kses.php 2021-08-26 19:09:16 UTC (rev 51674)
+++ trunk/src/wp-includes/kses.php 2021-08-26 19:27:59 UTC (rev 51675)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -846,7 +846,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @param string|array $context The context for which to retrieve tags. Allowed values are 'post',
</span><span class="cx" style="display: block; padding: 0 10px"> * 'strip', 'data', 'entities', or the name of a field filter such as
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * 'pre_user_description'.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * 'pre_user_description', or an array of allowed HTML elements and attributes.
</ins><span class="cx" style="display: block; padding: 0 10px"> * @return array Array of allowed HTML tags and their allowed attributes.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function wp_kses_allowed_html( $context = '' ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -853,15 +853,19 @@
</span><span class="cx" style="display: block; padding: 0 10px"> global $allowedposttags, $allowedtags, $allowedentitynames;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( is_array( $context ) ) {
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // When `$context` is an array it's actually an array of allowed HTML elements and attributes.
+ $html = $context;
+ $context = 'explicit';
+
</ins><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px"> * Filters the HTML tags that are allowed for a given context.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 3.5.0
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * @param array[]|string $context Context to judge allowed tags by.
- * @param string $context_type Context name.
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @param array[] $html Allowed HTML tags.
+ * @param string $context Context name.
</ins><span class="cx" style="display: block; padding: 0 10px"> */
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- return apply_filters( 'wp_kses_allowed_html', $context, 'explicit' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ return apply_filters( 'wp_kses_allowed_html', $html, $context );
</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"> switch ( $context ) {
</span></span></pre>
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