Security advisory

{
  "id": "391f1da23978d28807d2fc3fe2facf13fe5d20d134781388b23459dbb379d0bb",
  "url": "https://osv.dev/vulnerability/CVE-2021-3172",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3172",
    "summary": "An issue in Php-Fusion v9.03.90 fixed in v9.10.00 allows authenticated attackers to cause a Distributed Denial of Service via the Polling feature.",
    "evidence": "osv:CVE-2021-3172",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-3172",
      "aliases": [
        "CVE-2021-3172"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/phpfusion/phpfusion",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7b8df6925cc7cfd8585d4f34d9120ff3a2e5753e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "7b8df6925cc7cfd8585d4f34d9120ff3a2e5753e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3172.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:40.497664083Z",
      "provider": "osv",
      "references": [
        "https://github.com/PHPFusion/PHPFusion/issues/2351",
        "https://github.com/PHPFusion/PHPFusion/commit/7b8df6925cc7cfd8585d4f34d9120ff3a2e5753e"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:php-fusion:php-fusion:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "php-fusion:php-fusion",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.03.90"
                  },
                  {
                    "fixed": "9.10.00"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.03.90"
                  },
                  {
                    "fixed": "9.10.00"
                  }
                ],
                "source": "DESCRIPTION"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-3172",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385853,
  "published_at": "2023-02-17T18:15:11.68+00:00"
}