CVE-2025-12559GO-2025-4169GHSA-4G87-9X45-CX2H
Information Disclosure in Common Teams API
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 8.0.0-20251015091448-abbf01b9db45, 11.0.3, 10.12.2, 10.11.5, 10.5.13
- 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 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to sanitize team email addresses to be visible only to Team Admins, which allows any authenticated user to view team email addresses via the GET /api/v4/channels/{channel_id}/common_teams endpoint
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Mattermost Mattermost
From 11.0.0 · through 11.0.2; From 10.12.0 · through 10.12.1; From 10.11.0 · through 10.11.4; From 10.5.0 · through 10.5.12
- github.com/mattermost/mattermost-serverGo
All versions
- github.com/mattermost/mattermost-server/v5Go
All versions
- github.com/mattermost/mattermost-server/v6Go
All versions
- github.com/mattermost/mattermost/server/v8Go
fixed in 8.0.0-20251015091448-abbf01b9db45
- github.com/mattermost/mattermost-serverGo
From 11.0.0 · fixed in 11.0.3
- github.com/mattermost/mattermost-serverGo
From 10.12.0 · fixed in 10.12.2
- github.com/mattermost/mattermost-serverGo
From 10.11.0 · fixed in 10.11.5
- github.com/mattermost/mattermost-serverGo
From 10.5.0 · fixed in 10.5.13