API Key Scope Bypass in Grav Plugin by Getgrav
CVE-2026-80204

9.3CRITICAL

Key Information:

Vendor

Getgrav

Status
Grav
Vendor
CVE Published:
26 August 2026

What is CVE-2026-80204?

The Grav API plugin prior to version 1.0.18 has a flaw in the injectSecurityTab() function of the BlueprintController, which fails to properly limit the scope of API keys. This oversight allows users with a scoped API key to access and potentially modify page permission settings beyond their authorized scope. The lack of adequate security checks means that permissions can be incorrectly applied, posing a significant risk of unauthorized access and configuration changes.

Affected Version(s)

grav 0 < 1.0.18

grav 1.0.18

References

https://github.com/getgrav/grav/security/advisories/GHSA-...
vendor-advisory
https://www.vulncheck.com/advisories/grav-before-1.0.18-a...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

alham-rizvi
.