VULNERABILITY INTELLIGENCE

CVE-2025-27571

CVSS score4.3 MEDIUM
EPSS probability0.27%
CISA KEVNot currently listed
Published2025-04-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Description

Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the "Allow Users to View Archived Channels" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived.

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-863

Primary references