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CVE-2016-9492

Estado: ModificadaCrítica (9.8)—

The code generated by PHP FormMail Generator prior to 17 December 2016 is vulnerable to unrestricted upload of dangerous file types. In the generated form.lib.php file, upload file types are checked against a hard-coded list of dangerous extensions. This list does not include all variations of PHP files, which may lead to execution of the contained PHP code if the attacker can guess the uploaded filename. The form by default appends a short random string to the end of the filename.

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)

Jqueryform — PHP Formmail Generator

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-9492",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "PHP FormMail",
          "product": "Generator",
          "versions": [
            {
              "status": "affected",
              "version": "17/12/2016",
              "lessThan": "17/12/2016",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-07-13T20:29:01.643",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/96718",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/608591",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/96718",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/608591",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cret@cert.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The code generated by PHP FormMail Generator prior to 17 December 2016 is vulnerable to unrestricted upload of dangerous file types. In the generated form.lib.php file, upload file types are checked against a hard-coded list of dangerous extensions. This list does not include all variations of PHP files, which may lead to execution of the contained PHP code if the attacker can guess the uploaded filename. The form by default appends a short random string to the end of the filename."
    },
    {
      "lang": "es",
      "value": "El código generado por PHP FormMail Generator en versiones anteriores al 17 de diciembre de 2016 es vulnerable a la subida sin restricción de tipos de archivo peligrosos. En el archivo form.lib.php generado, los tipos de archivo de subida se comprueban contra una lista embebida de extensiones peligrosas. Esta lista no incluye todas las variaciones de archivos PHP, lo que puede conducir a la ejecución del código PHP contenido si el atacante puede adivinar el nombre de archivo subido. Por defecto, el formulario anexa una cadena aleatoria al fina del nombre de archivo."
    }
  ],
  "lastModified": "2026-06-17T00:56:09.977",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:jqueryform:php_formmail_generator:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "083C5DB4-DAF1-435B-A03B-3B3F43A23A9B",
              "versionEndExcluding": "2016-12-17"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cret@cert.org"
}