CVE-2026-54454

Summary

OpenCATS allows authenticated users with import privileges to upload PHP files that can be executed by the web server, leading to remote code execution and potential data exposure or modification. This vulnerability affects versions prior to 0.10.0.

Exploitability

Exploitation is relatively straightforward for authenticated users with import privileges, requiring only a single file upload and an import error to leave the malicious PHP file on disk in the web-accessible temporary directory.

Blast radius

The impact could be significant as attackers could execute arbitrary code with web server privileges, potentially exposing sensitive recruiting data, modifying candidate records, or compromising the entire host system.

Detection

Monitor for PHP files being uploaded to the temporary directory and executed via HTTP requests, particularly looking for unusual file extensions in web server logs or filesystem monitoring for PHP files in the import temporary directory.

Prioritized remediation

Upgrade to version 0.10.0 or later to fix this vulnerability.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.