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<title>[58570] trunk: Filesystem: Normalize allowed_files so comparison is apples to apples.</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/58570">58570</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/58570","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>jorbin</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2024-06-25 14:17:48 +0000 (Tue, 25 Jun 2024)</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'>Filesystem: Normalize allowed_files so comparison is apples to apples.
In <a href="https://core.trac.wordpress.org/changeset/58470">[58470]</a> a change was made to normalize the filename in validate_file, however this leads to instances where the list of files that are allowed aren't normalized such as in the theme editor. By normalizing the array, the comparison is apples to apples.
Fixes <a href="https://core.trac.wordpress.org/ticket/61488">#61488</a>.
Props jorbin, hellofromtonya, swissspidy, misulicus, script2see, Presskopp, audrasjb, peterwilsoncc, siliconforks, littler.chicken, paulkevan,</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesfunctionsphp">trunk/src/wp-includes/functions.php</a></li>
<li><a href="#trunktestsphpunittestsfunctionsphp">trunk/tests/phpunit/tests/functions.php</a></li>
</ul>
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<h3>Diff</h3>
<a id="trunksrcwpincludesfunctionsphp"></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/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/functions.php 2024-06-25 14:13:11 UTC (rev 58569)
+++ trunk/src/wp-includes/functions.php 2024-06-25 14:17:48 UTC (rev 58570)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -6199,8 +6199,10 @@
</span><span class="cx" style="display: block; padding: 0 10px"> return 0;
</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">- // Normalize path for Windows servers
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Normalize path for Windows servers.
</ins><span class="cx" style="display: block; padding: 0 10px"> $file = wp_normalize_path( $file );
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ // Normalize path for $allowed_files as well so it's an apples to apples comparison.
+ $allowed_files = array_map( 'wp_normalize_path', $allowed_files );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // `../` on its own is not allowed:
</span><span class="cx" style="display: block; padding: 0 10px"> if ( '../' === $file ) {
</span></span></pre></div>
<a id="trunktestsphpunittestsfunctionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/tests/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/functions.php 2024-06-25 14:13:11 UTC (rev 58569)
+++ trunk/tests/phpunit/tests/functions.php 2024-06-25 14:17:48 UTC (rev 58570)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1793,6 +1793,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Test file path validation
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @ticket 42016
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @ticket 61488
</ins><span class="cx" style="display: block; padding: 0 10px"> * @dataProvider data_validate_file
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @param string $file File path.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1913,6 +1914,13 @@
</span><span class="cx" style="display: block; padding: 0 10px"> 2,
</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">+ // Windows Path with allowed file
+ array(
+ 'Apache24\htdocs\wordpress/wp-content/themes/twentyten/style.css',
+ array( 'Apache24\htdocs\wordpress/wp-content/themes/twentyten/style.css' ),
+ 0,
+ ),
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // Disallowed files:
</span><span class="cx" style="display: block; padding: 0 10px"> array(
</span><span class="cx" style="display: block; padding: 0 10px"> 'foo.ext',
</span></span></pre>
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