CVE-2012-4205

Estado: ModificadaMedia (6.8)—
Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 assign the system principal, rather than the sandbox principal, to XMLHttpRequest objects created in sandboxes, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks or obtain sensitive information by leveraging a sandboxed add-on.
CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Puntuación base: 6.8
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.61%
Percentil entre todas las CVEs puntuadas: 75
Fecha de la puntuación: 7/10/2026
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 (8)

Canonical — Ubuntu Linux Mozilla — Firefox Mozilla — Seamonkey Mozilla — Thunderbird Opensuse — Opensuse Suse — Linux Enterprise Desktop Suse — Linux Enterprise Server Suse — Linux Enterprise Software Development KIT
CWE

CWE-352
Referencias

JSON original (NVD)

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      "value": "Mozilla Firefox antes de v17.0 Thunderbird antes de v17.0 y SeaMonkey antes v2.14, asigna el principal sistema, en lugar del entorno de seguridad, a los objetos XMLHttpRequest creados en entornos controlados, lo que permite a atacantes remotos realizar falsificación de peticiones en sitios cruzados (CSRF) u obtener información sensible mediante el aprovechamiento del complemento de entorno controlado."
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