CVEvulnerability

CVE-2025-13821

5.7 MEDIUM Published 2026-02-16 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-02-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.7 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Weaknesses
CWE-200

Description

Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to sanitize sensitive data in WebSocket messages which allows authenticated users to exfiltrate password hashes and MFA secrets via profile nickname updates or email verification events. Mattermost Advisory ID: MMSA-2025-00560

Affected configurations

• mattermost mattermost server (>= 10.11.0 < 10.11.10) • mattermost mattermost server (>= 11.1.0 < 11.1.3) • mattermost mattermost server (>= 11.2.0 < 11.2.2)

Related

Weakness · CWE (1)

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

References