Medium severity · published Jul 23, 2026
CVE-2026-65901
DOMPurify 3.4.6 Cross-Site Scripting via IN_PLACE nodeName
6.1
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
DOMPurify · cure53
through 3.4.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-65901
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-65901
Exploit
https://github.com/cure53/DOMPurify/security/advisories/GHSA-x4vx-rjvf-j5p4
Third Party Advisory
https://www.vulncheck.com/advisories/dompurify-cross-site-scripting-via-in-place-nodename
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