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CVE-2020-4076

Estado: ModificadaCrítica (9)—

In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

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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  "id": "CVE-2020-4076",
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        "source": "nvd@nist.gov",
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          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:N",
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          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "obtainAllPrivilege": false,
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  "affected": [
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          "product": "electron",
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  "published": "2020-07-07T00:15:10.590",
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          "value": "CWE-501"
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      "description": [
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      "lang": "en",
      "value": "In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using contextIsolation are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4."
    },
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      "value": "En Electron antes de las versiones 7.2.4, 8.2.4 y 9.0.0-beta21, se presenta una omisión de aislamiento de contexto. El código que se ejecuta en el contexto mundial principal en el renderizador puede alcanzar el contexto Electron aislado y llevar a cabo acciones privilegiadas. Las aplicaciones que usan contextIsolation están afectadas. Esto es corregido en las versiones 9.0.0-beta.21, 8.2.4 y 7.2.4"
    }
  ],
  "lastModified": "2026-06-17T03:19:31.590",
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