CVEvulnerability

CVE-2025-14350

4.3 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])
4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-862

Description

Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to properly validate team membership when processing channel mentions which allows authenticated users to determine the existence of teams and their URL names via posting channel shortlinks and observing the channel_mentions property in the API response. Mattermost Advisory ID: MMSA-2025-00563

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-862 Missing Authorization weakness

References