Charitable <= 1.8.10.4 - Authenticated (Custom+) SQL Injection via 's' Search Parameter

The Charitable – Donation Plugin for WordPress – Fundraising with Recurring Donations & More plugin for WordPress is vulnerable to generic SQL Injection via the 's' parameter in all versions up to, and including, 1.8.10.4 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with access to the donation management admin area (requiring the edit_others_donations capability) and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.