CVE-2026-107748
User Profile Builder <= 4.0.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'display_name' Parameter
- State
- Published
- Severity
- 6.4 Medium
- Published
- Oct 16, 2026
- Updated
- Oct 16, 2026
- Reserved
- Oct 8, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N | Wordfence |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editorcozmoslabs |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2f466add-992b-46c7-a1cc-5c05d59f4bdf?source=cve
- https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/functions.php#L582
- https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/functions.php#L585
- https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/functions.php#L593
- https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/front-end/default-fields/display-name/display-name.php#L81
- https://plugins.trac.wordpress.org/changeset/3741133/profile-builder
- https://plugins.trac.wordpress.org/changeset/3741133/profile-builder/trunk/features/functions.php
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