Input validation error in Mattermost Server - #VU50774
Published: February 17, 2021
Vulnerability identifier: #VU50774
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input in image proxy component for URLs. A remote attacker can bypass implemented security restrictions.
Affected software
Mattermost Server
Remediation
Install updates from vendor's website.
Mattermost Server - update to 5.31.0