VULNERABILITY INTELLIGENCE

CVE-2025-11776

CVSS score4.3 MEDIUM
EPSS probability0.21%
CISA KEVNot currently listed
Published2025-11-14
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Description

Mattermost versions <11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-863

Primary references