CVE-2021-47812

CRITICAL

9.8

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.19.8

SeveridadeCRITICAL

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/16/2026

Ultima modificacao2/2/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

getgrav:grav

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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