# CVE-2026-73694

## Summary

- **CVE ID:** CVE-2026-73694
- **Severity:** HIGH
- **CVSS Score:** 8.6 (CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-78
- **Published:** Sep 10, 2026
- **Last Modified:** Sep 10, 2026

## Description

FileRun before 2026.3.0 contains an OS command injection vulnerability caused by a no-op redefinition of escapeshellcmd() in CLI.php that strips shell-metacharacter escaping, allowing attacker-controlled input to reach an exec() sink unsanitized. Attackers can exploit this through an interactive path via image_preview.php with a crafted args parameter requiring superuser authentication, or through a persistent path by storing malicious payloads in thumbnails_ffmpeg_args or thumbnails_ffmpeg_ss that execute when any user triggers video thumbnail generation.

## Affected Products

- FileRun — FileRun (0)

## References

- [CNA](https://vulncheck.com/blog/filerun-delegated-admin-sql-to-object-injection-rce)
- [CNA](https://filerun.com/index.php/changelog?v=2026.3.0)
- [CNA](https://www.vulncheck.com/advisories/filerun-os-command-injection-via-escapeshellcmd-no-op-redefinition)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._