CVE-2026-3601
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.
- Score
- CVSS 3.1 4.3 Medium
- Status
- Deferred - security@wordfence.com
- Published
- 2026-05-05
- Last modified
- 2026-05-06
- Weaknesses
- CWE-862
Affected products
- Content Restriction (Wpeverest)
- Custom User Registration Login Builder (Wpeverest)
- Subscriptions (Wpeverest)
- User Profile (Wpeverest)
- User Registration Membership Free Paid Memberships (Wpeverest)
References
- https://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.2/includes/admin/class-ur-admin-assets.php#L370
- https://plugins.trac.wordpress.org/browser/user-registration/tags/5.1.2/includes/class-ur-ajax.php#L1003
- https://plugins.trac.wordpress.org/browser/user-registration/trunk/includes/admin/class-ur-admin-assets.php#L370
- https://plugins.trac.wordpress.org/browser/user-registration/trunk/includes/class-ur-ajax.php#L1003
- https://plugins.trac.wordpress.org/changeset/3485702/user-registration/trunk/includes/class-ur-ajax.php?contextall=1
- https://www.wordfence.com/threat-intel/vulnerabilities/id/c8798fb2-4cab-4960-9e32-fd74bb4a5091?source=cve
