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<title>[14416] sites/trunk/wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-bad-request.php: Bad Requests: Avoid PHP Warnings & Fatals from invalid input in `year`, `monthnum` and `day` fields.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="http://meta.trac.wordpress.org/changeset/14416">14416</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"http://meta.trac.wordpress.org/changeset/14416","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>dd32</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2025-04-09 01:34:05 +0000 (Wed, 09 Apr 2025)</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'>Bad Requests: Avoid PHP Warnings & Fatals from invalid input in `year`, `monthnum` and `day` fields.
This includes:
- `E_WARNING: Array to string conversion in wp-includes/post.php:6072`
- `Uncaught TypeError: urldecode(): Argument <a href="http://meta.trac.wordpress.org/ticket/1">#1</a> ($string) must be of type string, array given in wp-includes/post.php:6083`
See https://core.trac.wordpress.org/ticket/62828</pre>
<h3>Modified Paths</h3>
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<li><a href="#sitestrunkwordpressorgpublic_htmlwpcontentmupluginspubwporgbadrequestphp">sites/trunk/wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-bad-request.php</a></li>
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<h3>Diff</h3>
<a id="sitestrunkwordpressorgpublic_htmlwpcontentmupluginspubwporgbadrequestphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: sites/trunk/wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-bad-request.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- sites/trunk/wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-bad-request.php 2025-04-08 04:02:45 UTC (rev 14415)
+++ sites/trunk/wordpress.org/public_html/wp-content/mu-plugins/pub/wporg-bad-request.php 2025-04-09 01:34:05 UTC (rev 14416)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -41,6 +41,29 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }, 0 );
</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">+ * Detect invalid query parameters being passed in Core query fields, before the 'request' action.
+ * Generally causing warnings & fatals in `wp_resolve_numeric_slug_conflicts()`.
+ */
+add_filter( 'do_parse_request', function( $process ) {
+ if ( $process ) {
+ // See https://github.com/WordPress/wordpress-develop/blob/50fb4086b7afbfa012c5d1f2eeff79b1bae3b00e/src/wp-includes/rewrite.php#L400-L407
+ $wp_resolve_numeric_slug_conflict_fields = [
+ 'year',
+ 'monthnum',
+ 'day'
+ ];
+
+ foreach ( $wp_resolve_numeric_slug_conflict_fields as $field ) {
+ if ( isset( $_REQUEST[ $field ] ) && ! is_scalar( $_REQUEST[ $field ] ) ) {
+ die_bad_request( "non-scalar $field in do_parse_request" );
+ }
+ }
+ }
+
+ return $process;
+}, 1001 );
+
+/**
</ins><span class="cx" style="display: block; padding: 0 10px"> * Check a set of internal query variables against the WordPress WP_Query values to detect invalid input.
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function check_for_invalid_query_vars( $vars, $ref = '$public_query_vars' ) {
</span></span></pre>
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