{
  "id": "CVE-2015-4490",
  "sourceIdentifier": "security@mozilla.org",
  "published": "2015-08-16T01:59:18.080",
  "lastModified": "2024-11-21T02:31:11.353",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2 exceptions for the blob, data, and filesystem URL schemes during wildcard source-expression matching, which might make it easier for remote attackers to conduct cross-site scripting (XSS) attacks by leveraging unexpected policy-enforcement behavior."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad en la funci\u00f3n nsCSPHostSrc::permits en dom/security/nsCSPUtils.cpp en Mozilla Firefox en versiones anteriores a 40.0, no implementa excepciones de nivel 2 del Content Security Policy para el blob, los datos y el sistema de archivos de esquemas URL durante la b\u00fasqueda de coincidencia entre expresiones de c\u00f3digo y el comod\u00edn, lo que podr\u00eda facilitar a atacantes remotos realizar ataques de XSS mediante el aprovechamiento del comportamiento inesperado del cumplimiento de pol\u00edticas."
    }
  ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
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          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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  },
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-79"
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