CVE-2021-47936
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
May 10, 2026
Vendor
unknown
Description
OpenCATS 0.9.4 contains a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary commands by uploading malicious PHP files disguised as resume attachments. Attackers can upload PHP payloads through the careers job application endpoint and execute system commands via POST requests to the uploaded file in the upload directory.