CVE-2026-79995: Unknown User Registration & Membership

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Unknown User Registration & Membership: before 5.2.5 (fixed in 5.2.5)

Published 2026-08-28. Last modified 2026-08-28.