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.
Affected products
1- Range: <=5.1.4
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
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
5- Wordfence Intelligence Weekly WordPress Vulnerability Report (May 4, 2026 to May 10, 2026)Wordfence Blog · May 14, 2026
- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 27, 2026 to May 3, 2026)Wordfence Blog · May 7, 2026
- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 13, 2026 to April 19, 2026)Wordfence Blog · Apr 23, 2026
- Wordfence Intelligence Weekly WordPress Vulnerability Report (April 6, 2026 to April 12, 2026)Wordfence Blog · Apr 16, 2026
- Wordfence Intelligence Weekly WordPress Vulnerability Report (March 23, 2026 to March 29, 2026)Wordfence Blog · Apr 2, 2026