Unraid Web Server FileUpload Command Injection Remote Code Execution Vulnerability
June 24th, 2026
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unraid. Authentication is required to exploit this vulnerability.
The specific flaw exists within FileUpload.php. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the www-data user.
Additional Details
Fixed in version 7.3.0 stable (https://docs.unraid.net/unraid-os/release-notes/7.3.0/)
Disclosure Timeline
- 2026-04-22 - Vulnerability reported to vendor
- 2026-06-24 - Coordinated public release of advisory
- 2026-06-24 - Advisory Updated
Credit
Swagat Kumar Mishra(https://www.linkedin.com/in/swagatkumar/)
