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CVE-2023-34448

Estado: ModificadaAlta (7.2)—

Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default `filter()` function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke arbitrary unsafe functions, thereby allowing for remote code execution. A patch in version 1.74.2 overrides the built-in Twig `map()` and `reduce()` filter functions in `system/src/Grav/Common/Twig/Extension/GravExtension.php` to validate the argument passed to the filter in `$arrow`.

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)

CWE

Referencias

JSON original (NVD)

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      "lang": "en",
      "value": "Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default `filter()` function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke arbitrary unsafe functions, thereby allowing for remote code execution. A patch in version 1.74.2 overrides the built-in Twig `map()` and `reduce()` filter functions in `system/src/Grav/Common/Twig/Extension/GravExtension.php` to validate the argument passed to the filter in `$arrow`."
    },
    {
      "lang": "es",
      "value": "Grav es un sistema de gestión de contenidos de archivos planos. Antes de la versión 1.7.42, el parche para CVE-2022-2073, una vulnerabilidad de inyección de plantillas del lado del servidor en Gray aprovechando la función predeterminada \"filter()\", no bloqueaba otras funciones integradas expuestas por la extensión principal de Twig que podían utilizarse para invocar funciones no seguras arbitrarias, permitiendo así la ejecución remota de código. Un parche en la versión 1.74.2 anula las funciones de filtro incorporadas de Twig \"map()\" y \"reduce()\" en \"system/src/Grav/Common/Twig/Extension/GravExtension.php\" para validar el argumento pasado al filtro en \"$arrow\". "
    }
  ],
  "lastModified": "2026-06-17T06:03:40.357",
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