CVE-2007-6421

Estado: ModificadaBaja (3.5)—
Cross-site scripting (XSS) vulnerability in balancer-manager in mod_proxy_balancer in the Apache HTTP Server 2.2.0 through 2.2.6 allows remote attackers to inject arbitrary web script or HTML via the (1) ss, (2) wr, or (3) rr parameters, or (4) the URL.
CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N
Puntuación base: 3.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 8.32%
Percentil entre todas las CVEs puntuadas: 95
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 (1)

Apache — Http Server
CWE

CWE-79
Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2007-6421",
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          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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          "versions": [
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              "version": "n/a"
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  "published": "2008-01-08T19:46:00.000",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-79"
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  "descriptions": [
    {
      "lang": "en",
      "value": "Cross-site scripting (XSS) vulnerability in balancer-manager in mod_proxy_balancer in the Apache HTTP Server 2.2.0 through 2.2.6 allows remote attackers to inject arbitrary web script or HTML via the (1) ss, (2) wr, or (3) rr parameters, or (4) the URL."
    },
    {
      "lang": "es",
      "value": "La vulnerabilidad de tipo cross-site-scripting (XSS) en el controlador-balanceador en el componente mod_proxy_balancer en el servidor  HTTP de Apache versión 2.2.0 hasta 2.2.6, permite a los atacantes remotos inyectar scripts web o HTML arbitrarios por medio de los parámetros (1) ss, (2) wr o (3) rr, o (4) la dirección URL."
    }
  ],
  "lastModified": "2026-06-16T22:48:02.070",
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      "nodes": [
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  "vendorComments": [
    {
      "comment": "Fixed in Apache HTTP Server 2.2.8.  http://httpd.apache.org/security/vulnerabilities_22.html",
      "lastModified": "2008-07-02T00:00:00",
      "organization": "Apache"
    }
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  "sourceIdentifier": "cve@mitre.org"
}