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CVE-2026-41239 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Starting in version 1.0.10 and prior to version 3.4.0, `SAFE_FOR_TEMPLATES` strips `{{...}}` expressions from untrusted HTML. This works in string mode but not with `RETURN_DOM` or `RETURN_DOM_FRAGMENT`, allowing XSS via template-evaluating frameworks like Vue 2. Version 3.4.0 patches the issue.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/cure53/DOMPurify/releases/tag/3.4.0	[email protected]	Release NotesVendor
https://github.com/cure53/DOMPurify/security/advisories/GHSA-crv5-9vww-q3g8	[email protected]	AdvisoryExploitRemedyVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-1289	Improper Validation of Unsafe Equivalence in Input	[email protected]
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
cure53 DOMPurify	< 3.3.3 (semver)
CPE cpe:2.3:a:cure53:dompurify:::::::: Remediation Upgrade: 3.4.0moderate efforthttps://github.com/cure53/DOMPurify/releases/tag/3.4.0

Change History

3 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Apr 23, 2026	New CVE Received	[email protected]