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Vulnerabilities and Security Researches

NEX-Forms – Ultimate Form Builder – Contact forms and much more, CVE-2026-12142

CVE, Research URL

CVE-2026-12142

Published on
Jul 01, 2026
Research Description
The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via '_name[]' Array 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 wp_kses() output filtering pass provides no mitigation because NEXForms_allowed_tags() explicitly permits <script>, <iframe src/srcdoc>, and JS event handlers such as onClick, onBlur, and onChange in its allow-list.
Affected versions
max 9.2.3.
Status
vulnerable