Web Application Vulnerabilities Runtime SCA Findings
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DOMPurify Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vuln - CVE-2026-109345 - Vulnerability Database
DOMPurify

DOMPurify Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vuln - CVE-2026-109345

Medium
Reference: CVE-2026-109345
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2026-109345
Title: DOMPurify Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vuln
Overview:

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.