CVE-2026-82519: Reallysimpleplugins Really Simple Security

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Really Simple Security plugin for WordPress before 9.8.2 contains a missing authorization check vulnerability that allows authenticated low-privileged attackers to bypass enforced two-factor authentication indefinitely by exploiting an unguarded code path in the profile-page update handler. Attackers can submit a crafted POST request without the two-factor-authentication field to skip nonce verification and trigger delete_two_fa_meta(), which resets the grace period anchor timestamp on every login cycle, causing mandatory 2FA enforcement to be deferred indefinitely.

Affected products

• Reallysimpleplugins Really Simple Security: before 9.8.2 (fixed in 9.8.2)

Published 2026-09-14. Last modified 2026-09-20.