CVE-2026-3601CWE-862

User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Limited Page Content Modification

Medium · published May 5, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
27.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00354 · 27.9th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-05-05T08:27Z
EPSS history
Timeline
  • 05 MAY 08:27Z
    User Registration & Membership <= 5.1.4 - Missing Authorization to Authenticated (Contributor+) Limited Page Content Modification
    cvelistv5