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CVE-2026-62668

Full vulnerability record from the local CVENow database.

Description

Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.6, the Grav API plugin WebhookController.php accepts webhook URLs after only FILTER_VALIDATE_URL syntax validation, and WebhookDispatcher.php initializes cURL without CURLOPT_PROTOCOLS or CURLOPT_REDIR_PROTOCOLS restrictions. An account with api.webhooks.write can submit file, dict, gopher, private-network, or link-local targets, retrieve local files and delivery response bodies, and pivot requests to internal services or cloud metadata endpoints. This issue is fixed in version 1.0.6.

Severity
CRITICAL
CVSS score
9.4 (v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-08-19 16:18:19.317000
Last modified
2026-10-26 11:10:00.157000
View original CVE JSON
{
  "id": "CVE-2026-62668",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-19T16:18:19.317",
  "lastModified": "2026-10-26T11:10:00.157",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Grav API Plugin is a RESTful API for Grav CMS that provides full headless access to your site's content. Prior to 1.0.6, the Grav API plugin WebhookController.php accepts webhook URLs after only FILTER_VALIDATE_URL syntax validation, and WebhookDispatcher.php initializes cURL without CURLOPT_PROTOCOLS or CURLOPT_REDIR_PROTOCOLS restrictions. An account with api.webhooks.write can submit file, dict, gopher, private-network, or link-local targets, retrieve local files and delivery response bodies, and pivot requests to internal services or cloud metadata endpoints. This issue is fixed in version 1.0.6."
    },
    {
      "lang": "es",
      "value": "El plugin Grav API es una API RESTful para Grav CMS que proporciona acceso headless completo al contenido de su sitio. Antes de la versión 1.0.6, el plugin Grav API WebhookController.php acepta URLs de webhook después de solo una validación de sintaxis FILTER_VALIDATE_URL, y WebhookDispatcher.php inicializa cURL sin las restricciones CURLOPT_PROTOCOLS o CURLOPT_REDIR_PROTOCOLS. Una cuenta con api.webhooks.write puede enviar objetivos de tipo file, dict, gopher, private-network o link-local, recuperar archivos locales y cuerpos de respuesta de entrega, y pivotar solicitudes a servicios internos o a puntos finales de metadatos en la nube. Este problema está solucionado en la versión 1.0.6."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "getgrav",
          "product": "grav",
          "versions": [
            {
              "version": "< 2.0.4",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "getgrav",
          "product": "grav-plugin-api",
          "versions": [
            {
              "version": "< 1.0.6",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "subAvailabilityImpact": "HIGH",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-19T18:43:58.407223Z",
          "id": "CVE-2026-62668",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/getgrav/grav-plugin-api/commit/dfcc947f0d6758772caac290c68fe8d4c4a4874e",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/getgrav/grav-plugin-api/releases/tag/1.0.6",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/getgrav/grav/security/advisories/GHSA-58q8-f7v4-w2vf",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/getgrav/grav/security/advisories/GHSA-58q8-f7v4-w2vf",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}