CVE-2025-12559 (GCVE-0-2025-12559)
Vulnerability from cvelistv5
Published
2025-11-27 16:36
Modified
2025-11-28 15:20
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
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
References
Impacted products
Vendor Product Version
Mattermost Mattermost Version: 11.0.0   ≤ 11.0.2
Version: 10.12.0   ≤ 10.12.1
Version: 10.11.0   ≤ 10.11.4
Version: 10.5.0   ≤ 10.5.12
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