CVE-2021-47936

OpenCATS 0.9.4 Remote Code Execution via Resume Upload

CVSS 9.3 CRITICALEPSS 0.7%CWE-306

Vexday Risk Score

48Atención

Decisión SSVC (CISA)

Attend

PoC disponible → seguir de cerca

CVSS 9.3EPSS 0.7%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Ciclo de vida

10 may 2026Publicada en NVD

Recomendación: Planificar corrección próxima — ya existe PoC pública.

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.

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

Productos afectados

Opencats · OpenCATS

PoCs públicas encontradas — 1

cve_referencewww.exploit-db.com/exploits/50585no verificado

⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.

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Referencias

https://github.com/opencats/OpenCATS https://www.exploit-db.com/exploits/50585 https://www.opencats.org/https://www.vulncheck.com/advisories/opencats-remote-code-execution-via-resume-upload