CKAN stored XSS vulnerability in Markdown description fields

{
  "id": "4e191325d4981f65e6563e5934fcb8b2de09de71bd72174bc4ca30c2ae1fb63d",
  "url": "https://osv.dev/vulnerability/CVE-2025-54384",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CKAN stored XSS vulnerability in Markdown description fields",
    "summary": "CKAN is an open-source DMS (data management system) for powering data hubs and data portals. Prior to 2.10.9 and 2.11.4, the helpers.markdown_extract() function did not perform sufficient sanitization of input data before wrapping in an HTML literal element. This helper is used to render user-provided data on dataset, resource, organization or group pages (plus any page provided by an extension that used that helper function), leading to a potential XSS vector. This vulnerability has been fixed in CKAN 2.10.9 and 2.11.4.",
    "evidence": "osv:CVE-2025-54384",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-54384",
      "aliases": [
        "CVE-2025-54384",
        "GHSA-2r4h-8jxv-w2j8",
        "PYSEC-2026-1247"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ckan/ckan",
              "type": "GIT",
              "events": [
                {
                  "introduced": "710dfff718859ff284f0e9feee70c1ecfc86677a"
                },
                {
                  "fixed": "882f16b6de851e30345bfd06417512e79f890941"
                },
                {
                  "introduced": "0"
                },
                {
                  "fixed": "466f516528a736b60ed3ca60f5574a00c0522709"
                },
                {
                  "fixed": "6d0065f2fc7e2682196d125275af34b93e9e554e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "2.11.0"
                      },
                      {
                        "fixed": "2.11.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.10.9"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6d0065f2fc7e2682196d125275af34b93e9e554e"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "ckan-2.11.3",
            "ckan-2.10.8",
            "ckan-2.11.2",
            "ckan-2.10.7",
            "ckan-2.10.6",
            "ckan-2.11.1",
            "ckan-2.11.0",
            "ckan-2.10.5",
            "ckan-2.10.4",
            "ckan-2.10.3",
            "ckan-2.10.2",
            "ckan-2.10.0",
            "ckan-1.5",
            "ckan-1.4.3",
            "ckan-1.3.3b"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-54384.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.454789946Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/54xxx/CVE-2025-54384.json",
        "https://github.com/ckan/ckan/security/advisories/GHSA-2r4h-8jxv-w2j8",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-54384",
        "https://github.com/ckan/ckan/commit/6d0065f2fc7e2682196d125275af34b93e9e554e"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/54xxx/CVE-2025-54384.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-54384",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492132,
  "published_at": "2025-10-29T15:26:38.426+00:00"
}