From caed43f189116fe4e071ba4fa6a18075e014641c Mon Sep 17 00:00:00 2001
From: Weston Ruter <weston@xwp.co>
Date: Sun, 14 Dec 2025 07:13:24 +0000
Subject: [PATCH] Taxonomy: Avoid type error in
 `wp_delete_object_term_relationships()` when invalid taxonomy supplied.

Developed in https://github.com/WordPress/wordpress-develop/pull/10621

Props owolter, westonruter.
Fixes #64406.

Built from https://develop.svn.wordpress.org/trunk@61376


git-svn-id: http://core.svn.wordpress.org/trunk@60688 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/taxonomy.php | 4 ++++
 wp-includes/version.php  | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/wp-includes/taxonomy.php b/wp-includes/taxonomy.php
index 69f3fe7484..c314d474e6 100644
--- a/wp-includes/taxonomy.php
+++ b/wp-includes/taxonomy.php
@@ -1999,6 +1999,10 @@ function wp_delete_object_term_relationships( $object_id, $taxonomies ) {
 
 	foreach ( (array) $taxonomies as $taxonomy ) {
 		$term_ids = wp_get_object_terms( $object_id, $taxonomy, array( 'fields' => 'ids' ) );
+		if ( ! is_array( $term_ids ) ) {
+			// Skip return value in the case of an error or the 'wp_get_object_terms' filter returning an invalid value.
+			continue;
+		}
 		$term_ids = array_map( 'intval', $term_ids );
 		wp_remove_object_terms( $object_id, $term_ids, $taxonomy );
 	}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 01a30ee390..4b165f84af 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '7.0-alpha-61375';
+$wp_version = '7.0-alpha-61376';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.