CVE-2026-11963

User Registration & Membership < 5.2.2 - Subscriber+ Cross-User Role and Membership Tier Modification via IDOR

High · published July 13, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
27.4
In the wild
Unconfirmed
What it is

The User Registration & Membership WordPress plugin before 5.2.2 does not perform an authorization check on a membership-upgrade action and derives the user to modify from a caller-supplied identifier instead of the current user, allowing any authenticated user such as a subscriber to change another user's WordPress role and membership tier.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00350 · 27.4th percentile
Published
2026-07-13T06:00Z
EPSS history
Timeline
  • 13 JUL 06:00Z
    User Registration & Membership < 5.2.2 - Subscriber+ Cross-User Role and Membership Tier Modification via IDOR
    cvelistv5