Critical severity9.8NVD Advisory· Published May 10, 2026· Updated May 12, 2026
CVE-2021-47936
CVE-2021-47936
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.
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Affected products
1Patches
Vulnerability mechanics
References
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