Medium severity4.3NVD Advisory· Published May 5, 2026· Updated May 5, 2026
CVE-2026-3601
CVE-2026-3601
Description
The User Registration & Membership plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the embed_form_action() function in all versions up to, and including, 5.1.4. This makes it possible for authenticated attackers, with Contributor-level access and above, to append shortcode content to arbitrary pages they do not own or have permission to edit.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <=5.1.4
- Range: <=5.1.4
Patches
Vulnerability mechanics
References
6- plugins.trac.wordpress.org/browser/user-registration/tags/5.1.2/includes/admin/class-ur-admin-assets.phpnvd
- plugins.trac.wordpress.org/browser/user-registration/tags/5.1.2/includes/class-ur-ajax.phpnvd
- plugins.trac.wordpress.org/browser/user-registration/trunk/includes/admin/class-ur-admin-assets.phpnvd
- plugins.trac.wordpress.org/browser/user-registration/trunk/includes/class-ur-ajax.phpnvd
- plugins.trac.wordpress.org/changeset/3485702/user-registration/trunk/includes/class-ur-ajax.phpnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/c8798fb2-4cab-4960-9e32-fd74bb4a5091nvd
News mentions
2- Wordfence Intelligence Weekly WordPress Vulnerability Report (May 11, 2026 to May 17, 2026)Wordfence Blog · May 21, 2026
- Wordfence Intelligence Weekly WordPress Vulnerability Report (May 4, 2026 to May 10, 2026)Wordfence Blog · May 14, 2026