VULNERABILITY INTELLIGENCE
CVE-2026-3601
CVSS score4.3 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2026-05-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
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.
Weakness classification
- CWE-862: Missing Authorization