Cross-site scripting in Mattermost Server - CVE-2017-18893

 

Cross-site scripting in Mattermost Server - CVE-2017-18893

Published: June 19, 2020 / Updated: July 17, 2020


Vulnerability identifier: #VU30204
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-18893
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Mattermost, Inc.
Affected software:
Mattermost Server

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. Display names allow XSS.


How to mitigate CVE-2017-18893

Install update from vendor's website.

Sources