Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder, CVE-2026-4160
- CVE, Research URL
- Home page URL
- Application
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Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder
- Published on
- Apr 16, 2026
- Research Description
- The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'submission_id' parameter in versions up to, and including, 6.1.21. This is due to missing authorization and ownership validation on a user controlled key in the Stripe SCA confirmation AJAX endpoint. This makes it possible for unauthenticated attackers to modify payment status of targeted pending submissions (for example, setting the status to "failed").
- Affected versions
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max 6.2.0.
- Status
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vulnerable