Vulnerability Description
DOMPurify through 3.4.6 contains a cross-site scripting vulnerability in IN_PLACE mode that trusts attacker-controlled nodeName on live non-form nodes. Attackers can supply hostile live DOM objects with real script children whose observable nodeName is clobbered to appear as allowed elements, causing scripts to execute when the sanitized tree is inserted into a live document.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cure53 | Dompurify | < 3.4.7 |
Related Weaknesses (CWE)
References
- https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4ExploitThird Party Advisory
- https://www.vulncheck.com/advisories/dompurify-cross-site-scripting-via-in-placeThird Party Advisory
- https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4ExploitThird Party Advisory
FAQ
What is CVE-2026-65901?
CVE-2026-65901 is a vulnerability with a CVSS score of 6.1 (MEDIUM). DOMPurify through 3.4.6 contains a cross-site scripting vulnerability in IN_PLACE mode that trusts attacker-controlled nodeName on live non-form nodes. Attackers can supply hostile live DOM objects wi...
How severe is CVE-2026-65901?
CVE-2026-65901 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-65901?
Check the references section above for vendor advisories and patch information. Affected products include: Cure53 Dompurify.