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CVE-2021-37967

Estado: ModificadaMedia (4.3)—

Una implementación inapropiada en Background Fetch API en Google Chrome versiones anteriores a 94.0.4606.54, permitía a un atacante remoto que hubiera comprometido el proceso de renderización filtrar datos de origen cruzado por medio de una página HTML diseñada

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 (3)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-37967",
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
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          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 2.9,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
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  "affected": [
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  "published": "2021-10-08T22:15:08.017",
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  "vulnStatus": "Modified",
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          "value": "CWE-346"
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      "lang": "en",
      "value": "Inappropriate implementation in Background Fetch API in Google Chrome prior to 94.0.4606.54 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page."
    },
    {
      "lang": "es",
      "value": "Una implementación inapropiada en Background Fetch API en Google Chrome versiones anteriores a 94.0.4606.54, permitía a un atacante remoto que hubiera comprometido el proceso de renderización filtrar datos de origen cruzado por medio de una página HTML diseñada"
    }
  ],
  "lastModified": "2026-06-17T04:01:19.087",
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