CVE-2019-12363: Mybb-2fa Project Mybb-2fa

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

An CSRF issue was discovered in the JN-Jones MyBB-2FA plugin through 2014-11-05 for MyBB. An attacker can forge a request to an installed mybb2fa plugin to control its state via usercp.php?action=mybb2fa&do=deactivate (or usercp.php?action=mybb2fa&do=activate). A deactivate operation lowers the security of the targeted account by disabling two factor authentication.

Affected products

• Mybb-2fa Project Mybb-2fa: up to and including 2014-11-05

Published 2019-07-11. Last modified 2026-06-17.