Vulnerability Description
The Grav API plugin (getgrav/grav-plugin-api) versions >= 1.0.6 and <= 1.0.11 contain a privilege escalation vulnerability. A scoped API key minted on a super-admin account bypasses its declared scope cap on four isSuperAdmin()-gated write endpoints (in GroupsController, AccountsConfigController, PreferencesController, and DashboardWidgetController). These endpoints authorize via a super-admin early-return that never invokes requirePermission()—the sole enforcement point of the scope cap—so a 'read-only'-scoped key (e.g. api.pages.read) can perform super-only write operations, including rewriting group ACL maps to grant super-admin privileges to arbitrary accounts. A leaked or delegated read-only CI/monitoring key can therefore gain full super-admin write capability. Fixed in 1.0.13.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/getgrav/grav/security/advisories/GHSA-jqgq-v53x-x99g
- https://www.vulncheck.com/advisories/grav-through-privilege-escalation-via-scope
FAQ
What is CVE-2026-72833?
CVE-2026-72833 is a vulnerability with a CVSS score of 8.8 (HIGH). The Grav API plugin (getgrav/grav-plugin-api) versions >= 1.0.6 and <= 1.0.11 contain a privilege escalation vulnerability. A scoped API key minted on a super-admin account bypasses its declared scope...
How severe is CVE-2026-72833?
CVE-2026-72833 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-72833?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.