CVE-2026-63408 (GCVE-0-2026-63408)

Vulnerability from cvelistv5 – Published: 2026-08-19 15:53 – Updated: 2026-08-19 18:18
VLAI
Title
Grav API Plugin: JWT Access Token Accepted via `?token=` URL Query Parameter
Summary
Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.0-rc.16, the Grav API plugin JwtAuthenticator::extractBearerToken() accepts a JWT from the token URL query parameter on every /api/v1 route, including state-changing endpoints. Request URLs consequently expose valid access tokens through Apache, proxy, and CDN logs, browser history, and Referer headers, allowing a party with access to those records to reuse the token with the owner's API privileges. This issue is fixed in version 1.0.0-rc.16.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 18:17 UTC
CWE
  • CWE-598 - Use of GET Request Method With Sensitive Query Strings
Assigner
References
Impacted products
Vendor Product Version
getgrav grav-plugin-api Affected: < 1.0.0-rc.16
Create a notification for this product.
Show details on NVD website
To clipboard 

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