Security Advisory

CVE-2026-49978

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-14 20:02:46

Last updated 2026-07-21 14:59:20

Assigner GitHub_M

CVSS score 6.3

State PUBLISHED

Description

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.7, DOMPurify IN_PLACE sanitization could skip shadow contents attached to an element inside <template>.content, allowing attacker-controlled markup such as event handlers, JavaScript URLs, or scripts to survive and execute when an application cloned and inserted the sanitized template. This issue is fixed in version 3.4.7.

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