CVEvulnerability

CVE-2025-12559

4.3 MEDIUM Published 2025-11-27 Modified 2026-10-19 Official page ↗
Status
Analyzed
Published
2025-11-27
Last modified
2026-10-19
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-200

Description

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

Affected configurations

• mattermost mattermost server (>= 10.5.0 < 10.5.13) • mattermost mattermost server (>= 10.11.0 < 10.11.5) • mattermost mattermost server (>= 10.12.0 < 10.12.2) • mattermost mattermost server (>= 11.0.0 < 11.0.3)

Related

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References