Security advisory

{
  "id": "399f8524fceee80a1992424529a61bcf93eca81543b1a4151f95d0c3ccf7d6d2",
  "url": "https://osv.dev/vulnerability/CVE-2021-3994",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3994",
    "summary": "django-helpdesk is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
    "evidence": "osv:CVE-2021-3994",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-3994",
      "aliases": [
        "CVE-2021-3994",
        "GHSA-2v5j-q74q-r53f",
        "PYSEC-2021-438"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/django-helpdesk/django-helpdesk",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "94902ec44fc93d1e9fd2858cc2327902d028137a"
                },
                {
                  "fixed": "a22eb0673fe0b7784f99c6b5fd343b64a6700f06"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:django-helpdesk_project:django-helpdesk:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.3.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a22eb0673fe0b7784f99c6b5fd343b64a6700f06"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.3.1",
            "0.3.0",
            "0.3.0b3",
            "0.3.0b1",
            "0.2.18",
            "0.2.17",
            "0.2.16",
            "0.2.15",
            "0.2.14",
            "0.2.13",
            "0.2.12",
            "0.2.11",
            "0.2.10",
            "0.2.9",
            "0.2.8",
            "0.2.7",
            "0.2.4",
            "0.2.6",
            "0.2.5",
            "0.2.3",
            "0.2.1",
            "0.2.0",
            "0.1.17",
            "0.1.16",
            "0.1.15"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3994.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:54.509023045Z",
      "provider": "osv",
      "references": [
        "https://github.com/django-helpdesk/django-helpdesk/commit/a22eb0673fe0b7784f99c6b5fd343b64a6700f06",
        "https://huntr.dev/bounties/be7f211d-4bfd-44fd-91e8-682329906fbd"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-3994",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384743,
  "published_at": "2021-12-01T11:15:08.153+00:00"
}