Permissive List of Allowed Inputs Affecting dompurify package, versions <3.3.2
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Test your applications- Snyk IDSNYK-JS-DOMPURIFY-15874905
- published3 Apr 2026
- disclosed3 Apr 2026
- creditchristos-eth
Introduced: 3 Apr 2026
New CVE NOT AVAILABLE CWE-183 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade dompurify to version 3.3.2 or higher.
Overview
dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG.
Affected versions of this package are vulnerable to Permissive List of Allowed Inputs in the ADD_ATTR predicate function via EXTRA_ELEMENT_HANDLING.attributeCheck. An attacker can inject and execute malicious scripts in the DOM by bypassing URI validation for specific attribute and tag combinations, such as allowing href attributes with unsafe protocols like javascript:.