Web Application Vulnerabilities Runtime SCA Findings
Looking for the vulnerability index of Invicti's legacy products?
Invicti Enterprise Acunetix Standard & Premium
DOMPurify Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2026-66010 - Vulnerability Database
DOMPurify

DOMPurify Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2026-66010

Medium
Reference: CVE-2026-66010
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2026-66010
Title: DOMPurify Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability
Overview:

DOMPurify before 3.4.12 fails to execute afterSanitizeElements hook for custom elements allowed via CUSTOM_ELEMENT_HANDLING.tagNameCheck allowing attributes to bypass application security policies. Attackers can preserve sensitive attributes on custom elements that later re-inject them into innerHTML sinks creating second-order XSS gadgets.