Nex-Forms Express WP Form Builder <= 9.1.7 - Authenticated (Admin+) Stored Cross-Site Scripting

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2025-14803
CVSS Medium (4.4)
Publicly Published December 19, 2025
Last Updated January 13, 2026
Researcher Vuln Seeker Cyber Security Team
Description

The Nex-Forms Express WP Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 9.1.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled, or in instances where lower-level users have been granted access to the form builder.

References

1 affected software package

Software Type Plugin
Software Slug nex-forms-express-wp-form-builder (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 9.1.7
Patched Version
  • 9.1.8
This record contains material that is subject to copyright

Copyright 2012-2026 Defiant Inc.
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. License Detail.