Cockpit CMS 2.14.0 and prior contains a command injection vulnerability in the FFmpeg integration that allows authenticated users with only the assets/upload permission to execute arbitrary commands by uploading a video file with a shell metacharacter-laden filename. The unsanitized filename is interpolated into a shell command executed via Process::fromShellCommandline() before the slugify() sanitizer runs, enabling injected shell metacharacters such as backticks, $(), and semicolons to escape the FFmpeg command context and execute as the web-server user.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/Cockpit-HQ/Cockpit
disclosure@vulncheck.com
https://github.com/Cockpit-HQ/Cockpit/commit/28813596f57685f63d3a48f655e8e9bd2b…
disclosure@vulncheck.com
https://link.mateocallec.com/MFC-2026-002
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/cockpit-cms-authenticated-command-injectio…
disclosure@vulncheck.com