CVE-2026-75837

CRITICAL 9.1

Grav before 2.0.14 Privilege Escalation via Group Access Field

CVSS Score

9.1

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-269
Vendor	getgrav
Product	grav
Published	Aug 18, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

getgrav / grav

0 < 2.0.14

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

🔍 manus-use