CVE-2026-12142

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.
References
Link Resource
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/includes/classes/class.db.php#L2660
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/includes/classes/class.db.php#L2809
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/includes/classes/class.functions.php#L2343
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/main.php#L2660
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/main.php#L2720
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/main.php#L2903
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/includes/classes/class.db.php#L2660
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/includes/classes/class.db.php#L2809
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/includes/classes/class.functions.php#L2343
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/main.php#L2660
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/main.php#L2720
https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/main.php#L2903
https://plugins.trac.wordpress.org/changeset?old_path=%2Fnex-forms-express-wp-form-builder/tags/9.2.2&new_path=%2Fnex-forms-express-wp-form-builder/tags/9.2.3
https://www.wordfence.com/threat-intel/vulnerabilities/id/da235dea-4884-4e6a-a8b8-65d34f050684?source=cve
Configurations

No configuration.

History

01 Jul 2026, 11:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-07-01 11:16

Updated : 2026-07-01 13:56


NVD link : CVE-2026-12142

Mitre link : CVE-2026-12142

CVE.ORG link : CVE-2026-12142


JSON object : View

Products Affected

No product.

CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')