CVE-2026-65901
DOMPurify 3.4.6 Cross-Site Scripting via IN_PLACE nodeName
- State
- Published
- Severity
- 5.1 Medium
- Published
- Jul 23, 2026
- Updated
- Jul 23, 2026
- Reserved
- Jul 23, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
DOMPurifycure53 |
|
References
- GitHub Security Advisory (GHSA-x4vx-rjvf-j5p4)vendor-advisory
- VulnCheck Advisory: DOMPurify 3.4.6 Cross-Site Scripting via IN_PLACE nodeNamethird-party-advisory
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