Form Maker by 10Web <= 1.15.40 - Unauthenticated Stored Cross-Site Scripting via Matrix Field Text Box

Summary

The Form Maker by 10Web plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Matrix field (Text Box input type) in form submissions in all versions up to, and including, 1.15.40. This is due to insufficient input sanitization (`sanitize_text_field` strips tags but not quotes) and missing output escaping when rendering submission data in the admin Submissions view. This makes it possible for unauthenticated attackers to inject arbitrary JavaScript through a form submission that executes in the browser of an administrator who views the submission details.

Timeline

1. Apr 14, 2026, 2:25 AM UTCCVE published
2. Apr 14, 2026, 2:02 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Apr 14, 2026, 2:04 PM UTCRecord last updated

Affected versions

• 10web Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder

  through 1.15.40

References 5