CVE-2026-47423

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. In 3.4.4, DOMPurify allowed selectedcontent by default, allowing browsers to re-clone an XSS payload after sanitization so that unsanitized markup inside is returned. This issue is fixed in version 3.4.5...

Cross-site Scripting (XSS)

Overview org.webjars.npm:dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG. Affected versions of this package are vulnerable to Cross-site Scripting XSS through the HTML allowlist in dist/purify.cjs.js and related build artifacts. An attacker can inject a selectedcontent element into...

dompurify: DOMPurify: Cross-site scripting vulnerability allows information disclosure

A flaw was found in DOMPurify, a DOM-only cross-site scripting XSS sanitizer. Due to the default allowance of selectedcontent, a remote attacker could craft a malicious payload that, after initial sanitization, could be re-cloned by browsers, leading to the execution of unsanitized markup. This...

Uncontrolled recursion DoS in JustHTML() via deeply nested HTML

Summary justhtml through 1.9.1 allows denial of service via deeply nested HTML. During parsing, JustHTML.init always reaches TreeBuilder.finish, which unconditionally calls populateselectedcontent. That function recursively traverses the DOM via findelements / findelement without a depth bound,...