---
id: CVE-2026-73693
title: FileRun < 2026.3.0 OS Command Injection via PhotoProofSheet Handler
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
  th…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-78
vendor: FileRun
product: FileRun
affected:
  - FileRun < 2026.3.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-10T17:24:58.767230Z'
published: '2026-09-10'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T17:26:06.846Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-73693'
references:
  - url: >-
      https://vulncheck.com/blog/filerun-delegated-admin-sql-to-object-injection-rce
    label: VulnCheck Blog
  - url: 'https://filerun.com/index.php/changelog?v=2026.3.0'
    label: Release Notes
  - url: >-
      https://www.vulncheck.com/advisories/filerun-os-command-injection-via-photoproofsheet-handler
tags:
  - cve.org
epss: 0.01797
epssPercentile: 0.77508
ingestedAt: '2026-09-11T14:42:19.866Z'
---

## Overview

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.

## Affected

- `FileRun < 2026.3.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.