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Vulnerabilities and Security Researches

NEX-Forms – Ultimate Form Builder – Contact forms and much more, CVE-2026-13040

CVE, Research URL

CVE-2026-13040

Published on
Jul 03, 2026
Research Description
The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'real_val__' parameter in all versions up to, and including, 9.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The submission endpoint is registered via wp_ajax_nopriv_submit_nex_form with no nonce verification, making it fully accessible to unauthenticated attackers without any CSRF token.
Affected versions
max 9.2.3.
Status
vulnerable