CVE-2026-65912
Published:July 23, 2026
Updated:July 24, 2026
DOMPurify before 3.3.2 contains a URI validation bypass vulnerability when ADD_ATTR is provided as a predicate function via EXTRA_ELEMENT_HANDLING.attributeCheck. Attackers can supply a predicate that accepts specific attribute and tag combinations to bypass URI-safe validation, allowing unsafe protocols like javascript: to survive sanitization and execute as DOM-based XSS when the link is activated.
Affected Packages
dompurify (CDN_JS):
Affected version(s) >=0.7.0 <3.3.2Fix Suggestion:
Update to version 3.3.2https://github.com/cure53/DOMPurify.git (GITHUB):
Affected version(s) >=v0.3 <3.3.2Fix Suggestion:
Update to version 3.3.2dompurify (NPM):
Affected version(s) >=0.4.0 <3.3.2Fix Suggestion:
Update to version 3.3.2dompurify (NPM):
Affected version(s) >=0.4.0 <3.3.2Fix Suggestion:
Update to version 3.3.2Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.17