What’s Vulnerable › Vulnerabilities

CVE-2026-73694: FileRun < 2026.3.0 OS Command Injection via escapeshellcmd() No-Op Redefinition

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-10 · updated 2026-09-11
• Weakness: CWE-78

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: before 2026.3.0 — fixed in 2026.3.0

How to fix

Upgrade to a fixed version: FileRun 2026.3.0. Check the vendor advisory for mitigations.

References

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

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