DOMPurify Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vuln (CVE-2026-109345)
Description
DOMPurify before 3.4.16 contains a cross-site scripting vulnerability that allows attackers to bypass sanitization because IN_PLACE mode returns a force-removed style element whose text content still carries markup. Attackers can supply a style element containing a closing style tag and an img onerror payload, which executes script when the application serializes and re-parses the returned node.