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CVE-2026-66010 DOMPurify before 3.4.12 Hook Bypass via CUSTOM_ELEMENT_HANDLING

🗓️ 24 Jul 2026 12:07:57Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 47 Views

Older DOMPurify before 3.4.12 bypasses afterSanitizeElements for custom elements.

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Affected
Refs
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Family
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Security Bulletin: Resolved multiple XSS vulnerabilities in DOMPurify (CVE-2026-49978, CVE-2026-65898, CVE-2026-66010, and others)
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Rows per page
[
  {
    "vendor": "cure53",
    "product": "DOMPurify",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:npm/DOMPurify",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "3.4.12"
      },
      {
        "version": "3.4.12",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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24 Jul 2026 12:07Current
CVSS 45.1
CVSS 3.16.1
EPSS0.00215
47