VULNERABILITY INTELLIGENCE

CVE-2025-9072

CVSS score7.6 HIGH
EPSS probability0.18%
CISA KEVNot currently listed
Published2025-09-15
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

Description

Mattermost versions 10.10.x <= 10.10.1, 10.5.x <= 10.5.9, 10.9.x <= 10.9.4 fail to validate the redirect_to parameter, allowing an attacker to craft a malicious link that, once a user authenticates with their SAML provider, could post the user’s cookies to an attacker-controlled URL.

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-601

Primary references