CVE-2026-4388: Form Maker by 10Web <= 1.15.40 - Unauthenticated Stored Cross-Site Scripting via Matrix Field Text Box
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 (sanitizetextfield 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-4388?
CVE-2026-4388 is considered a high severity vulnerability due to its potential for unauthenticated stored cross-site scripting.
How do I fix CVE-2026-4388?
To fix CVE-2026-4388, update the Form Maker by 10Web plugin to a version greater than 1.15.40.
What kind of attack does CVE-2026-4388 enable?
CVE-2026-4388 enables attackers to perform stored cross-site scripting attacks through the Matrix field text box.
What versions of 10Web Form Maker are affected by CVE-2026-4388?
CVE-2026-4388 affects all versions of 10Web Form Maker up to and including version 1.15.40.
Is authentication required to exploit CVE-2026-4388?
No, CVE-2026-4388 can be exploited without authentication, making it particularly dangerous.