Quick answers
- Is CVE-2026-12142 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-12142 being exploited in the wild.
- How severe is CVE-2026-12142?
- High severity, with a CVSS score of 7.2, published 1 July 2026.
- Which products and versions are affected?
- Webaways NEX-Forms – Ultimate Forms Plugin for WordPress up to, and including, 9.2.2.
- Is there a fix for CVE-2026-12142?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-12142 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-12142?
- Check whether you run Webaways NEX-Forms – Ultimate Forms Plugin for WordPress at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
NEX-Forms for WordPress (up to version 9.2.2) is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping of the '_name[]' array parameter. The vulnerability is exacerbated because the plugin's custom filtering function, NEXForms_allowed_tags(), explicitly permits dangerous HTML elements and attributes including <script>, <iframe>, and various JavaScript event handlers (onClick, onBlur, onChange). An unauthenticated attacker can exploit this by submitting a crafted request to inject malicious scripts into the database. These scripts are then served to and executed by any user viewing the affected content. The issue was addressed in version 9.2.3.
Affected products
- webaways NEX-Forms – Ultimate Forms Plugin for WordPress up to, and including, 9.2.2
Timeline
- 2026-07-01: disclosed
- 2026-07-01: advisory
References
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/includes/classes/class.db.php
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/includes/classes/class.db.php
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/includes/classes/class.functions.php
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/main.php
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/main.php
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.1.10/main.php
- https://plugins.trac.wordpress.org/browser/nex-forms-express-wp-form-builder/tags/9.2.2/includes/classes/class.db.php