The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 6.1.7 via the 'submission_id' parameter due to missing validation on a user controlled key within the confirmScaPayment() function. This makes it possible for unauthenticated attackers to mark arbitrary submissions as failed via crafted requests to the endpoint granted they can guess or enumerate a valid submission identifier.
CVE-2025-13748 is a medium severity with CVSS 5.3 Authorization Bypass issue affecting the Plugin Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder. It affects Versions up to 6.1.7 and is fixed in 6.1.8.
CVE-2025-13748 is tracked for the Plugin Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder as medium severity with CVSS 5.3. The affected range is Versions up to 6.1.7. Update Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder to 6.1.8 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
fluentform
View on wordpress.org
|
| CVE | CVE-2025-13748 |
| Patched Versions |
6.1.8
|
| Affected Versions |
Versions up to 6.1.7
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder <= 5.1.16 - Missing Authorization to Settings Update and Limited Privilege Escalation
WP Fluent Forms < 3.6.67 - Stored Cross-Site Scripting
Contact Form Plugin by FluentForm <= 4.3.12 - CSV Injection
Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder <= 5.1.15 - PHP Object Injection via extractDynamicValues
Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder <= 5.1.16 - Missing Authorization to Setting Manipulation
Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder <= 5.2.6 - Unauthenticated Stored Cross-Site Scripting via Form Subject
FluentForm <= 4.3.25 - Authenticated (Administrator+) SQL Injection
FluentForm <= 6.1.11 - Unauthenticated Arbitrary Shortcode Execution
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