Path traversal in Mattermost Server - CVE-2017-18874
Published: June 19, 2020 / Updated: July 17, 2020
Vulnerability identifier: #VU30189
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-18874
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote privileged user to read and manipulate data.
An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can achieve directory traversal.
Affected software
Mattermost Server
How to mitigate CVE-2017-18874
Install update from vendor's website.
Mattermost Server - update to 4.2.1