CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 6.4. Exploitation may require the attacker to be authenticated.
CVE
CVE-2026-6062
Severity
MEDIUM
CVSS
6.4
EPSS
0.24%
Original NVD Description
Mattermost versions 11.7.x <= 11.7.0, 11.6.x <= 11.6.2, 11.5.x <= 11.5.5, 10.11.x <= 10.11.17 Fail to validate channel ownership of an existing subscription before applying edits which allows an authenticated attacker to hijack subscriptions from channels they have no access to via a crafted PUT request to the subscription edit endpoint.. Mattermost Advisory ID: MMSA-2026-00650
Related CVEs
Other vulnerabilities affecting the same vendor(s)