CVE-2025-27538

Mattermost versions 10.5.x = 10.5.1, 9.11.x = 9.11.9 fail to enforce MFA checks in PUT /api/v4/users/user-id/mfa when the requesting user differs from the target user ID, which allows users with editotherusers permission to activate or deactivate MFA for other users, even if those users have not...

BIT-MATTERMOST-2025-25068

Mattermost versions 10.4.x = 10.4.2, 10.3.x = 10.3.3, 9.11.x = 9.11.8, 10.5.x = 10.5.0 fail to enforce MFA on plugin endpoints, which allows authenticated attackers to bypass MFA protections via API requests to plugin-specific routes...

GHSA-72QV-J8VR-XVFV Mattermost Fails to Enforce MFA on Plugin Endpoints

Mattermost versions 10.4.x = 10.4.2, 10.3.x = 10.3.3, 9.11.x = 9.11.8, 10.5.x = 10.5.0 fail to enforce MFA on plugin endpoints, which allows authenticated attackers to bypass MFA protections via API requests to plugin-specific routes...