CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 8.0. Exploitation may require the attacker to be authenticated.
CVE
CVE-2026-4858
Severity
HIGH
CVSS
8
EPSS
0.33%
Original NVD Description
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to check integration URL for path traversal which allows an malicious authenticated user to call an arbitrary API via system admin Mattermost auth token using via path traversal in integration action URL.. Mattermost Advisory ID: MMSA-2026-00640
Related CVEs
Other vulnerabilities affecting the same vendor(s)