CVE-2026-80204 PUBLISHED

Grav before 1.0.18 Authentication Bypass via Scoped API Key

Assigner: VulnCheck
Reserved: 25.08.2026 Published: 26.08.2026 Updated: 26.08.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 9.3

Product Status

Vendor getgrav
Product grav
Versions Default: unaffected
  • affected from 0 to 1.0.18 (excl.)
  • Version 1.0.18 is unaffected

Credits

  • alham-rizvi reporter

References

Problem Types

  • Incorrect Authorization CWE