CVE-2007-6203

Estado: ModificadaMedia (4.3)—💥 Exploit
Apache HTTP Server 2.0.x and 2.2.x does not sanitize the HTTP Method specifier header from an HTTP request when it is reflected back in a "413 Request Entity Too Large" error message, which might allow cross-site scripting (XSS) style attacks using web client components that can send arbitrary headers in requests, as demonstrated via an HTTP request containing an invalid Content-length value, a similar issue to CVE-2006-3918.
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: 81%
Percentil entre todas las CVEs puntuadas: 100
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).
💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
Publicado en Exploit-DB · Apache 2.2.4 - 413 Error HTTP Request Method Cross-Site Scripting (30/11/2007)
Tecnologías afectadas (1)

Apache — Http Server
CWE

CWE-79
Referencias

JSON original (NVD)

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          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
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  "lastModified": "2026-06-16T22:47:35.973",
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      "lastModified": "2008-06-09T00:00:00",
      "organization": "Apache"
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      "comment": "Red Hat does not consider this issue to be a vulnerability.  In order to exploit this for cross-site scripting, the attacker would have to get the victim to supply an arbitrary malformed HTTP method to a target site.",
      "lastModified": "2007-12-06T00:00:00",
      "organization": "Red Hat"
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  "sourceIdentifier": "cve@mitre.org"
}