Vulnerability Description
The Grav API plugin (getgrav/grav-plugin-api, bundled with Grav's admin-next/API stack) before 1.0.14 fails to enforce the authorize requirement in MenubarController::executeAction(). While the GET /menubar/items listing endpoint correctly filters menubar items via userPassesAuthorize(), the POST /api/v1/menubar/actions/{plugin}/{action} endpoint only checks the baseline api.access permission and never evaluates the authorize field a plugin registered for that action. Any authenticated caller with api.access can therefore invoke a privileged menubar action directly, bypassing the intended authorization. No plugin bundled with core Grav currently registers a privileged authorize handler, so on a stock install the impact is latent; the flaw affects any first- or third-party plugin relying on the documented authorize semantics.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/getgrav/grav/security/advisories/GHSA-8mjx-xjfv-9c88
- https://www.vulncheck.com/advisories/grav-api-plugin-before-missing-authorizatio
- https://github.com/getgrav/grav/security/advisories/GHSA-8mjx-xjfv-9c88
FAQ
What is CVE-2026-75836?
CVE-2026-75836 is a vulnerability with a CVSS score of 8.8 (HIGH). The Grav API plugin (getgrav/grav-plugin-api, bundled with Grav's admin-next/API stack) before 1.0.14 fails to enforce the authorize requirement in MenubarController::executeAction(). While the GET /m...
How severe is CVE-2026-75836?
CVE-2026-75836 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-2026-75836?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.