FileRun < 2026.3.0 OS Command Injection via PhotoProofSheet Handler
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.
Summary
FileRun before 2026.3.0 contains an OS command injection vulnerability in the PhotoProofSheet handler that allows authenticated users with upload permission to execute arbitrary commands by uploading files with shell metacharacters in their names. Attackers can upload a file containing command substitution syntax such as backticks, semicolons, or $() sequences in the filename, then trigger the PhotoProofSheet endpoint to execute arbitrary commands as the web-server user due to missing escapeshellarg() sanitization in the ImageMagick montage command construction.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA FileRun (FileRun) Fixed in 2026.3.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
FileRun 2026.3.0
4 records Highest priority Priority HIGH 3 HIGH, 1 MEDIUM
Other records, highest priority first
- TI-2026-51764 FileRun < 2026.3.0 PHP Object Injection via Perms::getPerms()Priority HIGH 72
- TI-2026-51763 FileRun < 2026.3.0 Authenticated SQL Injection via Groups Add ActionPriority HIGH 72
- TI-2026-51762 FileRun < 2026.3.0 OS Command Injection via escapeshellcmd() No-Op RedefinitionPriority HIGH 72
Timeline
- 2026-10-02 Threatist record created from CVE-2026-73693
- 2026-10-03 Alias added: GHSA-63rx-6h5r-6rfp
References
Patch 1
More FileRun vulnerabilities
- TI-2026-51764 FileRun < 2026.3.0 PHP Object Injection via Perms::getPerms() CVSS 4.0HIGH 8.6
- TI-2026-51763 FileRun < 2026.3.0 Authenticated SQL Injection via Groups Add Action CVSS 4.0HIGH 8.6
- TI-2026-51762 FileRun < 2026.3.0 OS Command Injection via escapeshellcmd() No-Op Redefinition CVSS 4.0HIGH 8.6
- TI-2017-10801 FileRun (version 2017.09.18 and below) suffers from a remote SQL injection vulnerability… CVSS 3.0CRITICAL 9.8
- TI-2026-12531 FileRun 2026.2.0 RCE via Thumbnail Generation Command Injection CVSS 4.0HIGH 8.7
- TI-2022-23603 FileRun 20220519 allows SQL Injection via the "dir" parameter in a /?module=users§ion=cpanel&page=list request. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-73693 · CVE Program
- CVE-2026-73693 · NVD
- FIRST EPSS
- GHSA-63rx-6h5r-6rfp · GitHub Advisory Database · CC BY 4.0
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