CVE-2026-107748 User Profile Builder <= 4.0.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'display_name' Parameter
Authenticated attackers can inject persistent scripts via the display_name parameter, allowing execution in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-107748?
CVE-2026-107748 is a medium-severity cross-site scripting vulnerability in cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-107748?
How do I fix CVE-2026-107748?
No fix has been published for CVE-2026-107748 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-107748 being exploited?
There is no known exploitation of CVE-2026-107748 in the wild and no public exploit code.
Sources
Also known as GHSA-q4wg-8pfx-jfgq.