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.
CVE-2025-14803 is a medium severity with CVSS 4.4 Stored Cross-Site Scripting issue affecting the Plugin NEX-Forms – Ultimate Forms Plugin for WordPress. It affects Versions up to 9.1.7 and is fixed in 9.1.8.
CVE-2025-14803 is tracked for the Plugin NEX-Forms – Ultimate Forms Plugin for WordPress as medium severity with CVSS 4.4. The affected range is Versions up to 9.1.7. Update NEX-Forms – Ultimate Forms Plugin for WordPress to 9.1.8 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
nex-forms-express-wp-form-builder
View on wordpress.org
|
| CVE | CVE-2025-14803 |
| Patched Versions |
9.1.8
|
| Affected Versions |
Versions up to 9.1.7
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
NEX-Forms – Ultimate Form Builder < 4.6.1 - SQL Injection
NEX-Forms – Ultimate Form Builder <= 8.4.2 - Cross-Site Request Forgery to Cross-Site Scripting
NEX-Forms – Ultimate Forms Plugin for WordPress <= 9.1.9 - Missing Authorization to Unauthenticated Arbitrary Form Entry Modification via nf_set_entry_update_id
NEX-Forms <= 9.1.7 - Unauthenticated Stored Cross-Site Scripting
NEX-Forms <= 8.3.3 - Authenticated (Administrator+) SQL Injection
NEX-Forms <= 7.9.6 - Authenticated (Administrator+) SQL Injection
NEX-Forms – Ultimate Form Builder – Contact forms and much more <= 8.9.1 - Authenticated (Custom) Stored Cross-Site Scripting
NEX-Forms – Ultimate Form Builder <= 8.5.10 - Authenticated (Contributor+) Stored Cross-Site Scripting
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