CVE-2026-75837

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.

CVSS Vector

References

• https://github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hx
• https://www.vulncheck.com/advisories/grav-before-privilege-escalation-via-group-access-field