CVE-2025-12559 (GCVE-0-2025-12559)

Vulnerability from cvelistv5 – Published: 2025-11-27 16:36 – Updated: 2025-11-28 15:20
VLAI
Title
Information Disclosure in Common Teams API
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
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-28 15:20 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
Mattermost CNA under the mitre root
CNA scorecard B 80/100 over 129 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Mattermost Mattermost Affected: 11.0.0 , ≤ 11.0.2 (semver)
Affected: 10.12.0 , ≤ 10.12.1 (semver)
Affected: 10.11.0 , ≤ 10.11.4 (semver)
Affected: 10.5.0 , ≤ 10.5.12 (semver)
Unaffected: 11.1.0
Unaffected: 11.0.3
Unaffected: 10.12.2
Unaffected: 10.11.5
Unaffected: 10.5.13
guessed Create a notification for this product.
Credits
hainguyen0207
Show details on NVD website
To clipboard 

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