CVE-2026-3601
Medium · 4.3CVSS
4.3
EPSS
0.4%
Published
May 5, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|
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