CVE-2026-75837
Grav before 2.0.14 Privilege Escalation via Group Access Field
- State
- Published
- Severity
- 9.3 Critical
- Published
- Aug 18, 2026
- Updated
- Oct 8, 2026
- Reserved
- Aug 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-269 Improper Privilege Management
Affected Products
| Product | Versions |
|---|---|
gravgetgrav |
|
References
- GitHub Security Advisory (GHSA-xhfv-7758-r9hx)vendor-advisory
- VulnCheck Advisory: Grav before 2.0.14 Privilege Escalation via Group Access Fieldthird-party-advisory
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