CVE-2025-27538GO-2025-3620GHSA-J5JW-M2PH-3JJF
MFA Enforcement Bypass Allows Unauthorized Removal of MFA for Other Users
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 9.11.10+incompatible, 10.5.2+incompatible, 8.0.0-20250314142426-c049748b8863, 10.5.2, 9.11.10
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Mattermost Mattermost
From 10.5.0 · through 10.5.1; From 9.11.0 · through 9.11.9
- github.com/mattermost/mattermost-serverGo
From 9.11.0+incompatible · fixed in 9.11.10+incompatible; From 10.5.0+incompatible · fixed in 10.5.2+incompatible
- github.com/mattermost/mattermost-server/v5Go
All versions
- github.com/mattermost/mattermost-server/v6Go
All versions
- github.com/mattermost/mattermost/server/v8Go
fixed in 8.0.0-20250314142426-c049748b8863
- github.com/mattermost/mattermost/server/v8Go
From 10.5.0 · fixed in 10.5.2
- github.com/mattermost/mattermost/server/v8Go
From 9.11.0 · fixed in 9.11.10