Missing Authorization vulnerability in Rustaurius Front End Users allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Front End Users: from n/a through 3.2.32.
The Front End Users WordPress plugin through 3.2.32 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
The Front End Users plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the file uploads field of the registration form in all versions up to, and including, 3.2.32. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
The Front End Users plugin for WordPress is vulnerable to SQL Injection via the 'UserSearchField' parameter in all versions up to, and including, 3.2.32 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.