CVE-2006-4450

Estado: ModificadaMedia (5.1)—

usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request.

CVSS

Versión: 2.0
Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P
Puntuación base: 5.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 4.20%
Percentil entre todas las CVEs puntuadas: 91
Fecha de la puntuación: 6/10/2026

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)

Phpbb Group — Phpbb

CWE

NVD-CWE-Other

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2006-4450",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "HIGH",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 4.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2006-08-30T01:04:00.000",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2006-05/0238.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/20093",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/1470",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/17965",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/26537",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2006-05/0238.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/20093",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://securityreason.com/securityalert/1470",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/17965",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/26537",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "usercp_avatar.php in PHPBB 2.0.20, when avatar uploading is enabled, allows remote attackers to use the server as a web proxy by submitting a URL to the avatarurl parameter, which is then used in an HTTP GET request."
    },
    {
      "lang": "es",
      "value": "usercp_avatar.php en PHPBB 2.0.20, cuando la subida de ficheros avatar está habilitada, permite a atacantes remotos usar el servidor como un proxy web enviando una URL al parámetro avatarurl, el cual es usado entonces en una petición HTTP GET."
    }
  ],
  "lastModified": "2026-06-16T22:29:07.480",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:phpbb_group:phpbb:2.0.20:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "90AAEB34-A2E5-43C9-9EA5-DF8A6C848ED3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}