The Cost Calculator Builder PRO plugin for WordPress is vulnerable to blind time-based SQL Injection via the ‘data’ parameter in all versions up to, and including, 3.2.15 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.

The Cost Calculator Builder PRO for WordPress is vulnerable to arbitrary email sending vulnerability in versions up to, and including, 3.1.75. This is due to insufficient limitations on the email recipient and the content in the 'send_pdf' and the 'send_pdf_front' functions which are reachable via AJAX. This makes it possible for unauthenticated attackers to send emails with any content to any recipient.

Cost Calculator Builder Pro plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to 3.1.72, via the send_demo_webhook() function. This makes it possible for authenticated attackers, with subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.