CVE-2025-27538 — MFA Enforcement Bypass Allows Unauthorized Removal of MFA for Other Users

CVE-2025-27538

MFA Enforcement Bypass Allows Unauthorized Removal of MFA for Other Users PUBLISHED

Description (CNA)

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 edit_other_users permission to activate or deactivate MFA for other users, even if those users have not set up MFA.

Affected (CNA)

Vendor / product	Versions
Mattermost / Mattermost	affected 10.5.0 through 10.5.1; affected 9.11.0 through 9.11.9; unaffected 10.6.0; unaffected 10.5.2; unaffected 9.11.10

CWE

CWE-306

References

https://mattermost.com/security-updates

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.