DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.7, DOMPurify IN_PLACE sanitization could skip shadow contents attached to an element inside <template>.content, allowing attacker-controlled markup such as event handlers, JavaScript URLs, or scripts to survive and execute when an application cloned and inserted the sanitized template. This issue is fixed in version 3.4.7.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Cure53 Dompurify
cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*
|
— |
3.4.7
|
References 3
https://github.com/cure53/DOMPurify/commit/ca30f070c360df162a3e3848e80e6fd3c9e7…
security-advisories@github.com
https://github.com/cure53/DOMPurify/releases/tag/3.4.7
security-advisories@github.com
https://github.com/cure53/DOMPurify/security/advisories/GHSA-rp9w-3fw7-7cwq
security-advisories@github.com