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CVE-2026-58656

Grav API Plugin - Cross-Origin Admin Account Takeover via CORS Wildcard and JWT Query Parameter PUBLISHED

Description (CNA)

Grav API plugin before v1.0.0-rc.16 accepts JWT tokens via the ?token= URL query parameter and responds with Access-Control-Allow-Origin: *, allowing unauthenticated attackers to make fully authenticated cross-origin API requests from any malicious website. Attackers who obtain a leaked JWT token from access logs, proxy logs, browser history, or Referrer headers can create persistent backdoor super-admin accounts and exfiltrate sensitive configuration and user data.

Affected (CNA)

Vendor / productVersions
getgrav / gravaffected 0 through 1.0.0-rc.15

CWE

CWE-598

References

ADP enrichment

CISA-ADP

No English description supplied.