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Medium · 5.4 CVE-2026-80204 EUVD-2026-66395GHSA-c8f5-phgh-whxw

Grav before 1.0.18 Authentication Bypass via Scoped API Key

Published Aug 26, 2026 · Updated Aug 26, 2026 · Assigned by VulnCheck

Description

The Grav API plugin (getgrav/grav-plugin-api) before 1.0.18 does not apply the API-key scope cap in the injectSecurityTab() function of BlueprintController when deciding whether a page's security/permissions blueprint section is editable. Because the function performs raw isSuperAdmin()/hasPermission() checks without a request parameter, it cannot enforce scopeAllows(). A caller holding a scoped API key may therefore see (and potentially edit) page permission fields beyond the scope granted to the key. The end-to-end write-time impact was not fully confirmed by the reporter.

Affected products

VendorProductAffectedFixed
getgrav grav < 1.0.18 1.0.18

References