CVE-2026-75837

Critical

Open

TLP:CLEAR

Grav before 2.0.14 Privilege Escalation via Group Access Field

NVD CVE.org

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Description

Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities.

Details

CVSS Score: 9.3
CVSS Vector: 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
Confidence: 90%
Published: Aug 18, 2026
Last Modified: Aug 18, 2026

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