Auth bypass in User Registration & Membership
CVE-2026-79995
The User Registration & Membership WordPress plugin before 5.2.5 does not verify that the account whose pending email change is being cancelled belongs to the user making the request, allowing authenticated users with Subscriber-level access and above to cancel any other user's in-progress email change, including an administrator's.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.001 (3.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Unknown User Registration & Membership
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-79995?
- CVE-2026-79995 is a medium-severity vulnerability in User Registration & Membership, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-08-28.
- How severe is CVE-2026-79995?
- Medium severity. CVSS v3 base score is 4.3 out of 10.