Privilege escalation in User Registration & Membership
CVE-2026-79996
The User Registration & Membership WordPress plugin before 5.2.6 does not perform a capability check when saving its login settings, allowing authenticated users who have been granted a User Registration & Membership WordPress plugin before 5.2.6 management capability but not full administrator access to change arbitrary site options and escalate their privileges to administrator.
Vulnerability class: Privilege Escalation
EPSS: 0.001 (3.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Unknown User Registration & Membership
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-79996?
- CVE-2026-79996 is a high-severity vulnerability in User Registration & Membership, classified under Improper Privilege Management. CVSS score: 7.2/10. Published 2026-08-28.
- How severe is CVE-2026-79996?
- High severity. CVSS v3 base score is 7.2 out of 10.