Fluent Forms < 6.2.1 - Form Manager+ Authorization Bypass via 'table' Parameter

Description

The plugin is vulnerable to Insecure Direct Object Reference 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.