vulnerability

Red Hat: CVE-2024-45801: dompurify: XSS vulnerability via prototype pollution

Severity
8
CVSS
(AV:N/AC:M/Au:N/C:P/I:C/A:P)
Published
Sep 16, 2024
Added
Jul 9, 2025
Modified
Jul 10, 2025

Description

DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Solution

no-fix-redhat-rpm-package
Title
NEW

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