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CVE-2009-2816

Status: ModifiedMedium (6.8)—

The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, includes certain custom HTTP headers in the OPTIONS request during cross-origin operations with preflight, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via a crafted web page.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (5)

CWEs

References

Raw JSON (NVD)

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  "id": "CVE-2009-2816",
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      "description": [
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          "lang": "en",
          "value": "CWE-352"
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      "value": "The implementation of Cross-Origin Resource Sharing (CORS) in WebKit, as used in Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, includes certain custom HTTP headers in the OPTIONS request during cross-origin operations with preflight, which makes it easier for remote attackers to conduct cross-site request forgery (CSRF) attacks via a crafted web page."
    },
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      "lang": "es",
      "value": "La implementación de Cross-Origin Resource Sharing (CORS) en WebKit, tal como es usado en Safari de Apple anterior a versión 4.0.4 y Chrome de Google anterior a versión 3.0.195.33, incluye ciertos encabezados HTTP personalizados en la petición OPTIONS durante operaciones entre orígenes con comprobación previa, lo que facilita a los atacantes remotos conducir ataques de  tipo cross-site request forgery (CSRF) por medio de una página web especialmente diseñada."
    }
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  "lastModified": "2026-06-16T23:10:16.840",
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