CVEvulnerability

CVE-2025-6226

6.5 MEDIUM Published 2025-07-18 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-07-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-306

Description

Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read posts in private channels they don't have access to via guessing the PendingPostID of recently created posts.

Affected configurations

• mattermost mattermost server (>= 9.11.0 < 9.11.17) • mattermost mattermost server (>= 10.5.0 < 10.5.7) • mattermost mattermost server (>= 10.7.0 < 10.7.4) • mattermost mattermost server (>= 10.8.0 < 10.8.2)

Related

Weakness · CWE (1)

  • CWE-306 Missing Authentication for Critical Functionality weakness

References