CVEvulnerability

CVE-2025-53971

3.8 LOW Published 2025-08-21 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-08-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.8 LOW — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-863

Description

Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate authorization for team scheme role modifications which allows Team Admins to demote Team Members to Guests via the PUT /api/v4/teams/team-id/members/user-id/schemeRoles API endpoint.

Affected configurations

• mattermost mattermost server (>= 9.11.0 < 9.11.18) • mattermost mattermost server (>= 10.5.0 < 10.5.9)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References