What is GHSA-fx5h-wv8r-5j9q?

GHSA-fx5h-wv8r-5j9q is a security advisory published by GitHub Security Advisories with High severity. Grav API plugin before v1.0.0-rc.16 accepts JWT tokens via the ?token= URL query parameter and...

Which CVE IDs does GHSA-fx5h-wv8r-5j9q cover?

GHSA-fx5h-wv8r-5j9q covers the following CVE IDs: CVE-2026-58656. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-fx5h-wv8r-5j9q?

GHSA-fx5h-wv8r-5j9q has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-fx5h-wv8r-5j9qHighCVSS 7.5

Grav API plugin before v1.0.0-rc.16 accepts JWT tokens via the ?token= URL query parameter and...

Vendor

GitHub Security Advisories

Published

July 8, 2026

Last Modified

July 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-58656 →

📋 Description

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.

🔗 References (4)

https://github.com/getgrav/grav/security/advisories/GHSA-hqm9-5xxw-4qxp
https://nvd.nist.gov/vuln/detail/CVE-2026-58656
https://www.vulncheck.com/advisories/grav-api-plugin-cross-origin-admin-account-takeover-via-cors-wildcard-and-jwt-query-parameter
https://github.com/advisories/GHSA-fx5h-wv8r-5j9q