CVEvulnerability

CVE-2025-13767

4.3 MEDIUM Published 2025-12-24 Modified 2026-10-19 Official page ↗
Status
Analyzed
Published
2025-12-24
Last modified
2026-10-19
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-863

Description

Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fails to validate user channel membership when attaching Mattermost posts as comments to Jira issues, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to.

Affected configurations

• mattermost mattermost server (>= 10.11.0 < 10.11.8) • mattermost mattermost server (>= 10.12.0 < 10.12.4) • mattermost mattermost server (>= 11.0.0 < 11.0.6) • mattermost mattermost server (>= 11.1.0 < 11.1.1)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References