Security advisory

{
  "id": "3ce7790bc481d14b258178191d8d82674177e5cc17d2450f8dbd4a5be0ae35ec",
  "url": "https://osv.dev/vulnerability/CVE-2020-9447",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-9447",
    "summary": "There is an XSS (cross-site scripting) vulnerability in GwtUpload 1.0.3 in the file upload functionality. Someone can upload a file with a malicious filename, which contains JavaScript code, which would result in XSS. Cross-site scripting enables attackers to steal data, change the appearance of a website, and perform other malicious activities like phishing or drive-by hacking.",
    "evidence": "osv:CVE-2020-9447",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-9447",
      "aliases": [
        "CVE-2020-9447",
        "GHSA-5chj-xprr-7qqx"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/manolo/gwtupload",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6422caed2c0550c158a2ab3f9ad7839646e1d713"
                },
                {
                  "last_affected": "6422caed2c0550c158a2ab3f9ad7839646e1d713"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gwtupload_project:gwtupload:1.0.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.0.3"
                      },
                      {
                        "last_affected": "1.0.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.3",
            "gwtupload-project-1.0.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-9447.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:26.108772035Z",
      "provider": "osv",
      "references": [
        "https://github.com/manolo/gwtupload/issues/32",
        "https://www.coresecurity.com/advisories/gwtupload-xss-file-upload-functionality"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-9447",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385362,
  "published_at": "2020-02-28T16:15:11.087+00:00"
}