The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'display_name' parameter in all versions up to, and including, 4.0.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload persists in wp_comments.comment_author independently of the user account, so removing or changing the attacker's display name after the comment is posted does not neutralize the stored script.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
cozmoslabs:user profile builder – beautiful user registration forms, user profiles & user role editor
References 7
https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/front-end…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3741133/profile-builder
security@wordfence.com
https://plugins.trac.wordpress.org/changeset/3741133/profile-builder/trunk/feat…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/2f466add-992b-46c7-a1…
security@wordfence.com