CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.3. It may be remotely exploitable.
CVE
CVE-2024-39839
Severity
MEDIUM
CVSS
4.3
EPSS
0.34%
Original NVD Description
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.
Related CVEs
Other vulnerabilities affecting the same vendor(s)