GHSA-vhxf-7vqr-mrjg

DOMPurify allows Cross-site Scripting (XSS)

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-26791

Packages

Ecosystem	Package	Affected	Fixed in
npm	dompurify	< 3.2.4	3.2.4

Details

As written in the advisory (Markdown source, shown as plain text).

DOMPurify before 3.2.4 has an incorrect template literal regular expression when SAFE_FOR_TEMPLATES is set to true, sometimes leading to mutation cross-site scripting (mXSS).

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2025-26791 advisory
https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0f02 web
https://ensy.zip/posts/dompurify-323-bypass web
https://github.com/cure53/DOMPurify package
https://github.com/cure53/DOMPurify/releases/tag/3.2.4 web
https://nsysean.github.io/posts/dompurify-323-bypass web