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CVE-2026-27591

CRITICAL

9.9

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung9.9

SchweregradCRITICAL

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienLOW

BenutzerinteraktionNONE

Veroffentlicht3/11/2026

Zuletzt geandert3/19/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

wintercms:winter

Schwachen (CWE)

CWE-284CWE-639CWE-915

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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