CVE-2026-75837
Published:August 18, 2026
Updated:September 23, 2026
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.
Affected Packages
getgrav/grav (PHP):
Affected version(s) >=dev-add-claude-github-actions-1770170196497 <2.0.14Fix Suggestion:
Update to version 2.0.14getgrav/grav (PHP):
Affected version(s) >=dev-add-claude-github-actions-1770170196497 <2.0.14Fix Suggestion:
Update to version 2.0.14Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
EPSS
Base Score:
0.34