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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Workaround

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History

Mon, 11 May 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 10 May 2026 13:00:00 +0000

Type Values Removed Values Added
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.
Title OpenCATS 0.9.4 Remote Code Execution via Resume Upload
First Time appeared Opencats
Opencats opencats
Weaknesses CWE-306
CPEs cpe:2.3:a:opencats:opencats:*:*:*:*:*:*:*:*
Vendors & Products Opencats
Opencats opencats
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-11T15:17:07.720Z

Reserved: 2026-02-01T11:24:18.717Z

Link: CVE-2021-47936

cve-icon Vulnrichment

Updated: 2026-05-11T15:17:04.305Z

cve-icon NVD

Status : Received

Published: 2026-05-10T13:16:29.830

Modified: 2026-05-10T13:16:29.830

Link: CVE-2021-47936

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-10T15:30:14Z

Weaknesses