CVE-2026-73693 Details
Description
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.
A command injection vulnerability has been identified in FileRun versions prior to 2026.3.0, specifically within the PhotoProofSheet handler. This vulnerability allows authenticated users with upload permissions to execute arbitrary commands on the server. The issue arises from the lack of proper sanitization in the ImageMagick montage command, which fails to escape shell metacharacters in filenames. As a result, an attacker can upload a file with command substitution syntax, such as backticks or semicolons, and trigger the PhotoProofSheet endpoint to execute commands as the web server user.
Users are advised to update to FileRun version 2026.3.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 10, 2026CISA-ADP
Assessed Sep 10, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://filerun.com/index.php/changelog?v=2026.3.0 | [email protected] | Release NotesVendor |
| https://vulncheck.com/blog/filerun-delegated-admin-sql-to-object-injection-rce | [email protected] | BundleExploitRemedyTechnical Analysis |
| https://www.vulncheck.com/advisories/filerun-os-command-injection-via-photoproofsheet-handler | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| FileRun | < 2026.3.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 10, 2026 | CVE Modified | CISA-ADP |
| Sep 10, 2026 | New CVE Received | [email protected] |