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CVE-2009-4924

Estado: ModificadaMedia (4.3)—

Dan Pascu python-cjson 1.0.5 does not properly handle a ['/'] argument to cjson.encode, which makes it easier for remote attackers to conduct certain cross-site scripting (XSS) attacks involving Firefox and the end tag of a SCRIPT element.

CVSS

Probabilidad de explotación (EPSS)

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)

DAN Pascu — Python-cjson

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-4924",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-07-02T19:30:00.863",
  "references": [
    {
      "url": "http://pypi.python.org/pypi/python-cjson/",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://t3.dotgnu.info/blog/insecurity/quotes-dont-help.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://pypi.python.org/pypi/python-cjson/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://t3.dotgnu.info/blog/insecurity/quotes-dont-help.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dan Pascu python-cjson 1.0.5 does not properly handle a ['/'] argument to cjson.encode, which makes it easier for remote attackers to conduct certain cross-site scripting (XSS) attacks involving Firefox and the end tag of a SCRIPT element."
    },
    {
      "lang": "es",
      "value": "Dan Pascu python-cjson v1.0. no controla correctamente un argumento ['/'] a cjson.encode, lo que facilita a los atacantes remotos el llevar a cabo determinados ataques de ejecución de secuencias de comandos en sitios cruzados (XSS) con Firefox y la etiqueta final de un elemento SCRIPT."
    }
  ],
  "lastModified": "2026-06-16T23:14:37.813",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dan_pascu:python-cjson:1.0.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "125AA747-189E-4580-902C-96C53119C78C"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}