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CVE-2026-27591

CRITICAL

9.9

Descricao

Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Prior to 1.0.477, 1.1.12, and 1.2.12, Winter CMS allowed authenticated backend users to escalate their accounts level of access to the system by modifying the roles / permissions assigned to their account through specially crafted requests to the backend while logged in. To actively exploit this security issue, an attacker would need access to the Backend with a user account with any level of access. This vulnerability is fixed in 1.0.477, 1.1.12, and 1.2.12.

Detalhes CVE

Pontuacao CVSS v3.19.9

SeveridadeCRITICAL

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado3/11/2026

Ultima modificacao3/19/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

wintercms:winter

Fraquezas (CWE)

CWE-284CWE-639CWE-915

Referencias

https://github.com/wintercms/winter/security/advisories/GHSA-pgpf-m8m4-6cg6(security-advisories@github.com)

https://wintercms.com/releases/v1.0.477(security-advisories@github.com)

https://wintercms.com/releases/v1.1.12(security-advisories@github.com)

https://wintercms.com/releases/v1.2.12(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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