CVE-2026-41239

FAUCET Score

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.

First published: Apr 23, 2026Last modified: Apr 25, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
Cure53	DOMPurify	>= 1.0.10, < 3.4.0CNA affected

CVSS Data

CVSS version used by this source: 3.1

6.8MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

Exploitability Score

1.6

Impact Score

5.2

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.25%

Probability of exploitation in next 30 days

EPSS Percentile

16.2%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0025 is in the 32nd percentile among its peer group of 707 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa

Product: dompurifyFixed in: 3.4.0

Vendor Advisories (1)

npmGHSA-crv5-9vww-q3g8medium

DOMPurify has a SAFE_FOR_TEMPLATES bypass in RETURN_DOM mode

Apr 22, 2026

References

github.com / cure53/DOMPurify/releases/tag/3.4.0

github.com / cure53/DOMPurify/security/advisories/GHSA-crv5-9vww-q3g8