VULNERABILITY INTELLIGENCE

CVE-2025-27715

CVSS score3.3 LOW
EPSS probability0.22%
CISA KEVNot currently listed
Published2025-03-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N

Description

Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-863
  • nvd@nist.gov: CWE-863

Primary references