Citizen Short Description stored XSS vulnerability through wikitext

{
  "id": "903e6330606bb41ef6e882d18647f47d89af7f483a4fb030df257c891bc411c9",
  "url": "https://osv.dev/vulnerability/CVE-2025-53369",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Citizen Short Description stored XSS vulnerability through wikitext",
    "summary": "Short Description is a MediaWiki extension that provides local short description support. In version 4.0.0, short descriptions are not properly sanitized before being inserted as HTML using mw.util.addSubtitle, allowing any user to insert arbitrary HTML into the DOM by editing a page. This issue has been patched in version 4.0.1.",
    "evidence": "osv:CVE-2025-53369",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-53369",
      "aliases": [
        "CVE-2025-53369",
        "GHSA-p85q-mww9-gwqf"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/starcitizentools/mediawiki-extensions-shortdescription",
              "type": "GIT",
              "events": [
                {
                  "introduced": "05f6c6824f8f37dcc2d51cf6df4e7a09bea2196c"
                },
                {
                  "fixed": "2c18bd21c5de53c336f55b6ff42f2983ea5796b4"
                },
                {
                  "fixed": "bc4fdbaeb1dff127fb6d08c0d385b64aa128c8f8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "05f6c6824f8f37dcc2d51cf6df4e7a09bea2196c"
                      },
                      {
                        "fixed": "2c18bd21c5de53c336f55b6ff42f2983ea5796b4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "bc4fdbaeb1dff127fb6d08c0d385b64aa128c8f8"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-53369.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.203402416Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53369.json",
        "https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/security/advisories/GHSA-p85q-mww9-gwqf",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-53369",
        "https://github.com/StarCitizenTools/mediawiki-extensions-ShortDescription/commit/bc4fdbaeb1dff127fb6d08c0d385b64aa128c8f8"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-79"
        ],
        "cna_assigner": "GitHub_M",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "4.0.0"
                  },
                  {
                    "fixed": "4.0.1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53369.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-53369",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489560,
  "published_at": "2025-07-03T19:57:55.147+00:00"
}