CVE-2025-27538

Summary

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 Software

VendorProductVersion RangeStatus
MattermostMattermost10.5.0 <= 10.5.1affected
MattermostMattermost9.11.0 <= 9.11.9affected
MattermostMattermost10.6.0unaffected
MattermostMattermost10.5.2unaffected
MattermostMattermost9.11.10unaffected

Weaknesses

  • CWE-306: CWE-306: Missing Authentication for Critical Function

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References