FKIE_CVE-2026-63408

Vulnerability from fkie_nvd - Published: 2026-08-19 16:18 - Updated: 2026-08-19 19:17
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
References
security-advisories@github.comhttps://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9
security-advisories@github.comhttps://github.com/getgrav/grav-plugin-api/releases/tag/1.0.0-rc.16
security-advisories@github.comhttps://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "grav-plugin-api",
          "vendor": "getgrav",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.0-rc.16"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site\u0027s 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\u0027s API privileges. This issue is fixed in version 1.0.0-rc.16."
    }
  ],
  "id": "CVE-2026-63408",
  "lastModified": "2026-08-19T19:17:22.413",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-63408",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-19T18:17:25.345538Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-19T16:18:38.013",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/getgrav/grav-plugin-api/commit/56ae2ca3bf36c8299a4b3d376c6a20e8c0ed5ba9"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.0-rc.16"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/getgrav/grav/security/advisories/GHSA-4hpj-wmpw-ghwq"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-598"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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