CVEvulnerability

CVE-2025-10545

4.3 MEDIUM Published 2025-10-16 Modified 2026-10-19 Official page ↗
Status
Analyzed
Published
2025-10-16
Last modified
2026-10-19
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.1 LOW — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
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-863

Description

Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when adding channel members which allows guest users to add any team members to their private channels via the `/api/v4/channels/{channel_id}/members` endpoint

Affected configurations

• mattermost mattermost server (>= 10.5.0 < 10.5.11) • mattermost mattermost server (>= 10.11.0 < 10.11.3)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References