CVE-2009-2472

Estado: ModificadaMedia (4.3)—
Mozilla Firefox before 3.0.12 does not always use XPCCrossOriginWrapper when required during object construction, which allows remote attackers to bypass the Same Origin Policy and conduct cross-site scripting (XSS) attacks via a crafted document, related to a "cross origin wrapper bypass."
CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Puntuación base: 4.3
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 2.24%
Percentil entre todas las CVEs puntuadas: 82
Fecha de la puntuación: 6/10/2026
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 (6)

Fedoraproject — Fedora Mozilla — Firefox Opensuse — Opensuse Suse — Linux Enterprise Debuginfo Suse — Linux Enterprise Desktop Suse — Linux Enterprise Server
CWE

CWE-79
Referencias

JSON original (NVD)

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  "id": "CVE-2009-2472",
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
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          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  "published": "2009-07-22T18:30:00.437",
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  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
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  "descriptions": [
    {
      "lang": "en",
      "value": "Mozilla Firefox before 3.0.12 does not always use XPCCrossOriginWrapper when required during object construction, which allows remote attackers to bypass the Same Origin Policy and conduct cross-site scripting (XSS) attacks via a crafted document, related to a \"cross origin wrapper bypass.\""
    },
    {
      "lang": "es",
      "value": "Mozilla Firefox anteriores a v3.0.12 no usa siempre XPCCrossOriginWrapper cuando es requerido durante la construcción del objeto, lo que permite a atacantes remotos eludir la \"Same Origin Policy\" y realizar ataques de secuencias de comandos en sitios cruzados (XSS) mediante un documento manipulado, relacionado con una \"cross origin wrapper bypass.\""
    }
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  "lastModified": "2026-06-16T23:09:31.457",
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