CVE-2026-1302

The Meta-box GalleryMeta plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

The following products are affected by CVE-2026-1302 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-1302.

URL	Resource
https://plugins.trac.wordpress.org/browser/meta-box-gallerymeta/tags/3.0.1/gallerymetaboxes.php#L119
https://plugins.trac.wordpress.org/browser/meta-box-gallerymeta/tags/3.0.1/gallerymetaboxes.php#L314
https://plugins.trac.wordpress.org/browser/meta-box-gallerymeta/tags/3.0.1/templates/single-mb_gallery.php#L31
https://plugins.trac.wordpress.org/browser/meta-box-gallerymeta/tags/3.0.1/templates/single-mb_gallery.php#L33
https://plugins.trac.wordpress.org/changeset/3446962/
https://www.wordfence.com/threat-intel/vulnerabilities/id/bb9ae252-7e5f-4dc0-a162-100493b81980?source=cve