CVE-2026-75837: Improper Privilege Management in getgrav grav
CVE-2026-75837 is a critical improper privilege management vulnerability in Grav before version 2.0.14. It allows a delegated admin.users operator to escalate privileges to super-admin by modifying the access field in the core group blueprint, gaining scheduler and Twig evaluation capabilities.
AI Analysis
Technical Summary
Grav versions prior to 2.0.14 do not enforce the required security restriction (security@: admin.super) on the access field in the core group blueprint. This flaw enables a delegated admin.users operator to save a group with access[admin][super]=true, effectively escalating their privileges to super-admin. This escalation grants the attacker scheduler and Twig evaluation capabilities, which can lead to significant control over the system.
Potential Impact
An attacker with delegated admin.users privileges can escalate to super-admin, gaining powerful capabilities including scheduler control and the ability to evaluate Twig templates. This can lead to unauthorized administrative actions and potential full system compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vulnerability affects versions before 2.0.14, upgrading to version 2.0.14 or later is likely recommended once official guidance is available.
CVE-2026-75837: Improper Privilege Management in getgrav grav
Description
CVE-2026-75837 is a critical improper privilege management vulnerability in Grav before version 2.0.14. It allows a delegated admin.users operator to escalate privileges to super-admin by modifying the access field in the core group blueprint, gaining scheduler and Twig evaluation capabilities.
CVSS v4.0
Score 9.3critical
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Grav versions prior to 2.0.14 do not enforce the required security restriction (security@: admin.super) on the access field in the core group blueprint. This flaw enables a delegated admin.users operator to save a group with access[admin][super]=true, effectively escalating their privileges to super-admin. This escalation grants the attacker scheduler and Twig evaluation capabilities, which can lead to significant control over the system.
Potential Impact
An attacker with delegated admin.users privileges can escalate to super-admin, gaining powerful capabilities including scheduler control and the ability to evaluate Twig templates. This can lead to unauthorized administrative actions and potential full system compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vulnerability affects versions before 2.0.14, upgrading to version 2.0.14 or later is likely recommended once official guidance is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-18T10:59:33.701Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a844367c6e8be0332229746
Added to database: 08/18/2026, 11:35:03 UTC
Last enriched: 08/18/2026, 11:51:06 UTC
Last updated: 08/18/2026, 12:09:19 UTC
Views: 2
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