CVE-2026-63408

7.5 highEPSS 0.5%

High (7.5). EPSS 0.5% chance of exploitation in the next 30 days.

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

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-598
Published: 2026-08-19
Modified: 2026-09-09
Record from: the NVD, synced 2026-10-19

References

https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9
https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.0-rc.16
https://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq

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