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CVE-2024-21636

Estado: ModificadaMedia (6.1)—

view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. Versions prior to 3.9.0 and 2.83.0 have a cross-site scripting vulnerability that has the potential to impact anyone rendering a component directly from a controller with the view_component gem. Note that only components that define a `#call` method (i.e. instead of using a sidecar template) are affected. The return value of the `#call` method is not sanitized and can include user-defined content.

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In addition, the return value of the `#output_postamble` methodis not sanitized, which can also lead to cross-site scripting issues. Versions 3.9.0 and 2.83.0 have been released and fully mitigate both the `#call` and the `#output_postamble` vulnerabilities. As a workaround, sanitize the return value of `#call`.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Viewcomponent — View Component

CWE

Referencias

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  "id": "CVE-2024-21636",
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          "id": "CVE-2024-21636",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-01-09T21:13:15.952519Z"
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          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
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  "published": "2024-01-04T20:15:25.300",
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  "vulnStatus": "Modified",
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          "value": "CWE-79"
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      "lang": "en",
      "value": "view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. Versions prior to 3.9.0 and 2.83.0 have a cross-site scripting vulnerability that has the potential to impact anyone rendering a component directly from a controller with the view_component gem. Note that only components that define a `#call` method (i.e. instead of using a sidecar template) are affected. The return value of the `#call` method is not sanitized and can include user-defined content. In addition, the return value of the `#output_postamble` methodis not sanitized, which can also lead to cross-site scripting issues. Versions 3.9.0 and 2.83.0 have been released and fully mitigate both the `#call` and the `#output_postamble` vulnerabilities. As a workaround, sanitize the return value of `#call`."
    },
    {
      "lang": "es",
      "value": "view_component es un framework para crear componentes de vista reutilizables, comprobables y encapsulados en Ruby on Rails. Las versiones anteriores a la 3.9.0 tienen una vulnerabilidad de cross site scripting que tiene el potencial de afectar a cualquiera que renderice un componente directamente desde un controlador con la gema view_component. Tenga en cuenta que sólo se ven afectados los componentes que definen un método `#call` (es decir, en lugar de utilizar una plantilla complementaria). El valor de retorno del método `#call` no está sanitizado y puede incluir contenido definido por el usuario. Además, el valor de retorno del método `#output_postamble` no está sanitizado, lo que también puede provocar problemas de cross site scripting. Se lanzó la versión 3.9.0 y mitiga por completo las vulnerabilidades `#call` y `#output_postamble`. Como workaround, sanitice valor de retorno de `#call`."
    }
  ],
  "lastModified": "2026-06-17T07:09:53.780",
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