VULNERABILITY INTELLIGENCE

CVE-2025-13352

CVSS score3 LOW
EPSS probability0.18%
CISA KEVNot currently listed
Published2025-12-17
Last modified2026-10-13
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:N

Description

Mattermost versions 10.11.x <= 10.11.6 and Mattermost GitHub plugin versions <=2.4.0 fail to validate plugin bot identity in reaction forwarding which allows attackers to hijack the GitHub reaction feature to make users add reactions to arbitrary GitHub objects via crafted notification posts.

Weakness classification

  • CWE-1287: Improper Validation of Specified Type of Input

Primary references