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, 6.2.0 via the exportEntries function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Fluent Forms manager-level access and above, to bypass form-level access restrictions to access submissions from forms they are not authorized to view, export data from arbitrary database tables, and enumerate database table names via error message disclosure.

The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'permissionmessage' parameter in all versions up to, and including, 6.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Fluent Forms plugin for WordPress is vulnerable to Arbitrary File Read in versions up to and including 6.2.1. This is due to insufficient path validation in the getAttachments() method of EmailNotificationActions, which resolves attacker-supplied file-upload URLs into filesystem paths without verifying that the resolved path stays inside the WordPress uploads directory: a strpos() prefix check on the raw URL can be bypassed with traversal sequences, wpnormalizepath() does not resolve ".\..\" segments, and fileexists() then resolves them at the kernel level. This makes it possible for authenticated attackers with administrator access to read arbitrary files readable by the web-server user — including wp-config.php with its database credentials and authentication salts — by submitting a form whose admin notification is configured to attach a file-upload field and supplying a crafted URL of the shape <uploadbaseurl>/../../<target> as the file-field value. The resolved file is attached to the outbound admin-notification email via wpmail(). While the email can be triggered by unauthenticated users, the email recipient is not user-controlled.

Missing Authorization vulnerability in Shahjahan Jewel FluentForm fluentform allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects FluentForm: from n/a through <= 5.0.8.