Path traversal in Mattermost Server - CVE-2020-14452
Published: July 2, 2020
Vulnerability identifier: #VU29471
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-14452
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to insufficient sanitization of user-supplied passed via HTTP. A remote attacker can send a specially crafted HTTP request containing directory traversal sequences and read contents of arbitrary files on the system.
Affected software
Mattermost Server
How to mitigate CVE-2020-14452
Install update from vendor's website.
Mattermost Server - update to 5.21