CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.6. See the original NVD description below for full technical details.
CVE
CVE-2026-27659
Severity
MEDIUM
CVSS
4.6
EPSS
0.12%
Original NVD Description
Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to properly validate CSRF tokens in the /api/v4/access_control_policies/{policy_id}/activate endpoint, which allows an attacker to trick an admin into changing access control policy active status via a crafted request.. Mattermost Advisory ID: MMSA-2026-00578
Related CVEs
Other vulnerabilities affecting the same vendor(s)