CVE-2026-41239

MEDIUM

6.8

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.

CVE Details

CVSS v3.1 Score6.8

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published4/23/2026

Last Modified4/23/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-79CWE-1289

References

https://github.com/cure53/DOMPurify/releases/tag/3.4.0(security-advisories@github.com)

https://github.com/cure53/DOMPurify/security/advisories/GHSA-crv5-9vww-q3g8(security-advisories@github.com)

IOC Correlations

No correlations recorded

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