PT-2026-60650 · Getgrav · Grav

Nicl4Ssic · CVE-2026-62386 · Published 2026-07-17 · Updated 2026-07-17

Mitre

CVSS v3.1

7.5

High

Base vector

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

The Grav API plugin (getgrav/grav-plugin-api) before 1.0.0-rc.16 accepts JWT access tokens through the ?token= URL query parameter on every API route (JwtAuthenticator::extractBearerToken fallback). Because tokens are embedded in URLs, they are logged verbatim in web server access logs, leaked via the Referer header, stored in browser history, and captured by upstream proxy and CDN logs, exposing valid admin access tokens. A leaked token grants unauthorized API access, including reading configuration and user data, creating admin accounts, modifying system settings, and deleting pages.

Fix

Weakness Enumeration

CWE-598

Related Identifiers

CVE-2026-62386

Affected Products

Grav

References · 3

• https://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-62386 · Security Note
• https://vulncheck.com/advisories/grav-rc-16-authentication-bypass-via-token-url-parameter · Note