CVE-2021-47812

CRITICAL

9.8

Descripcion

GravCMS 1.10.7 contains an unauthenticated vulnerability that allows remote attackers to write arbitrary YAML configuration and execute PHP code through the scheduler endpoint. Attackers can exploit the admin-nonce parameter to inject base64-encoded payloads and create malicious custom jobs with system command execution.

Detalles CVE

Puntuacion CVSS v3.19.8

SeveridadCRITICAL

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado1/16/2026

Ultima modificacion2/2/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

getgrav:grav

Debilidades (CWE)

CWE-862

Referencias

https://getgrav.org(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49973(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/gravcms-arbitrary-yaml-writeupdate-unauthenticated(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49973(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlaciones IOC

Sin correlaciones registradas

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