CVE-2026-42841

{
  "id": "CVE-2026-42841",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-11T16:17:34.653",
  "lastModified": "2026-10-26T18:10:00.173",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Grav is a file-based Web platform. Prior to 2.0.0-beta.2, an authenticated user with page editing permissions can inject an executable JavaScript event-handler attribute into rendered image HTML through Grav's Markdown media action syntax. The issue is caused by Markdown image query parameters being converted into callable media actions. The public attribute() media method can be reached this way, allowing an editor to set an arbitrary HTML attribute name and value on the generated image element. This vulnerability is fixed in 2.0.0-beta.2."
    },
    {
      "lang": "es",
      "value": "Grav es una plataforma web basada en archivos. Antes de 2.0.0-beta.2, un usuario autenticado con permisos de edición de página puede inyectar un atributo de gestor de eventos JavaScript ejecutable en el HTML de imagen renderizado a través de la sintaxis de acción de medios Markdown de Grav. El problema es causado por los parámetros de consulta de imagen Markdown que se convierten en acciones de medios invocables. El método de medios público attribute() puede ser alcanzado de esta manera, permitiendo a un editor establecer un nombre y valor de atributo HTML arbitrarios en el elemento de imagen generado. Esta vulnerabilidad está corregida en 2.0.0-beta.2."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "getgrav",
          "product": "grav",
          "versions": [
            {
              "version": "< 2.0.0-beta.2",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
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          "timestamp": "2026-05-11T16:19:03.457943Z",
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            },
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          "role": "CISA Coordinator",
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      "source": "[email protected]",
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      "description": [
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  "references": [
    {
      "url": "https://github.com/getgrav/grav/commit/5a12f9be8314682c8713e569e330f11805d0a663",
      "source": "[email protected]",
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