CVE-2026-73694
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| FileRun | FileRun | 0 < 2026.3.0 | affected |
Weaknesses
- CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- https://vulncheck.com/blog/filerun-delegated-admin-sql-to-object-injection-rce
- https://filerun.com/index.php/changelog?v=2026.3.0
- https://www.vulncheck.com/advisories/filerun-os-command-injection-via-escapeshellcmd-no-op-redefinition
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