CVE-2026-2356CWE-284

User Registration & Membership <= 5.1.2 - Insecure Direct Object Reference to Unauthenticated Limited User Deletion

Medium · published February 26, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
8.7
In the wild
Unconfirmed
What it is

The User Registration & Membership – Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.2 via the 'register_member' function, due to missing validation on the 'member_id' user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary user accounts that newly registered on the site who has the 'urm_user_just_created' user meta set.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00195 · 8.7th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-02-26T02:23Z
EPSS history
Timeline
  • 26 FEB 02:23Z
    User Registration & Membership <= 5.1.2 - Insecure Direct Object Reference to Unauthenticated Limited User Deletion
    cvelistv5