CVE-2009-3622

Estado: ModificadaMedia (4.3)—

Vulnerabilidad de complejidad algorítmica en wp-trackback.php en WordPress anteriores a v2.8.5 permite a atacantes remotos provocar una denegación de servicio (Consumo de CPU y cuelgue del servidor) a través de un valor largo en el parámetro "title" en conjunción con un parámetro "charset" compuesto por muchas subcadenas "UTF-8" separadas por coma, está relacionado con la función mb_convert_encoding en PHP.

CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Puntuación base: 4.3

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 5.83%
Percentil entre todas las CVEs puntuadas: 93
Fecha de la puntuación: 8/10/2026

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)

Wordpress — Wordpress

CWE

CWE-310

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2009-3622",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "version": "n/a"
            }
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      ]
    }
  ],
  "published": "2009-10-23T18:30:00.517",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-310"
        }
      ]
    }
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  "descriptions": [
    {
      "lang": "en",
      "value": "Algorithmic complexity vulnerability in wp-trackback.php in WordPress before 2.8.5 allows remote attackers to cause a denial of service (CPU consumption and server hang) via a long title parameter in conjunction with a charset parameter composed of many comma-separated \"UTF-8\" substrings, related to the mb_convert_encoding function in PHP."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de complejidad algorítmica en wp-trackback.php en WordPress anteriores a v2.8.5 permite a atacantes remotos provocar una denegación de servicio (Consumo de CPU y cuelgue del servidor) a través de un valor largo en el parámetro \"title\" en conjunción con un parámetro \"charset\" compuesto por muchas subcadenas \"UTF-8\" separadas por coma, está relacionado con la función mb_convert_encoding en PHP."
    }
  ],
  "lastModified": "2026-06-16T23:12:02.380",
  "configurations": [
    {
      "nodes": [
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  "sourceIdentifier": "secalert@redhat.com"
}