VULNERABILITY INTELLIGENCE

CVE-2025-20033

CVSS score4.3 MEDIUM
EPSS probability0.61%
CISA KEVNot currently listed
Published2025-01-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Description

Mattermost versions 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post types, which allows attackers to deny service to users with the sysconsole_read_plugins permission via creating a post with the custom_pl_notification type and specific props.

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-1287

Primary references