{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.3.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8b5d0be44ded457ca993ec9ca93d859941c63764"
            }
          ],
          "repo": "https://github.com/typo3/html-sanitizer",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "TYPO3",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47345.json"
  },
  "details": "Namespace attributes are not encoded correctly during HTML serialization. This allows bypassing the cross-site scripting prevention mechanism of typo3/html-sanitizer before version 2.3.2.",
  "id": "CVE-2026-47345",
  "modified": "2026-08-12T03:51:35.311104327Z",
  "published": "2026-06-08T19:04:08.337Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://packagist.org"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47345.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-47345"
    },
    {
      "type": "ADVISORY",
      "url": "https://typo3.org/security/advisory/typo3-core-sa-2026-006"
    },
    {
      "type": "FIX",
      "url": "https://github.com/TYPO3/html-sanitizer/commit/8b5d0be44ded457ca993ec9ca93d859941c63764"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/TYPO3/html-sanitizer"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "TYPO3 HTML Sanitizer allows Cross-Site Scripting"
}