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CVE-2009-4421

Estado: ModificadaMedia (6.5)—💥 Exploit

Directory traversal vulnerability in languages_cgi.php in Simple PHP Blog 0.5.1 and earlier allows remote authenticated users to include and execute arbitrary local files via a .. (dot dot) in the blog_language1 parameter.

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).

💥 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.

Tecnologías afectadas (1)

Alexander Palmo — Simple PHP Blog

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-4421",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-12-24T17:30:00.297",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2009-12/0398.html",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/508546/100/0/threaded",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/37434",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/54970",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archives.neohapsis.com/archives/fulldisclosure/2009-12/0398.html",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/508546/100/0/threaded",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/37434",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/54970",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Directory traversal vulnerability in languages_cgi.php in Simple PHP Blog 0.5.1 and earlier allows remote authenticated users to include and execute arbitrary local files via a .. (dot dot) in the blog_language1 parameter."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de salto de directorio en languages_cgi.php en Simple PHP Blog v0.5.1 y anteriores permite a usuarios autenticados incluir y ejecutar ficheros a su elección a través de .. (punto punto) en el parámetro blog_language1."
    }
  ],
  "lastModified": "2026-06-16T23:13:38.223",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:alexander_palmo:simple_php_blog:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "801C2AC1-F15E-4F78-BC9C-8395B31F6D69",
              "versionEndIncluding": "0.5.1"
            },
            {
              "criteria": "cpe:2.3:a:alexander_palmo:simple_php_blog:0.3.7c:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CA3A47B4-46A9-49DF-A06B-D76FA67318EA"
            },
            {
              "criteria": "cpe:2.3:a:alexander_palmo:simple_php_blog:0.4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5484A9DD-01B6-42AC-AF93-F2B4CA33DB4D"
            },
            {
              "criteria": "cpe:2.3:a:alexander_palmo:simple_php_blog:0.4.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "10B1AB7A-63C5-43EA-8EF0-1934EE174719"
            },
            {
              "criteria": "cpe:2.3:a:alexander_palmo:simple_php_blog:0.4.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AA9FA414-82D3-4540-99E1-35E6680316FA"
            },
            {
              "criteria": "cpe:2.3:a:alexander_palmo:simple_php_blog:0.4.7:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "52D0A226-6644-46C6-95ED-FAD553F6C736"
            },
            {
              "criteria": "cpe:2.3:a:alexander_palmo:simple_php_blog:0.4.7.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7FDC4414-F257-461B-AE73-9F295EB4F978"
            },
            {
              "criteria": "cpe:2.3:a:alexander_palmo:simple_php_blog:0.5.0.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "26D83F04-D2F2-4530-9A56-6650AA40BBB7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}