The Import and export users and customers plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.24.2 via the Recurring Import functionality. This makes it possible for authenticated attackers, with administrator access and above, to read and delete the contents of arbitrary files on the server including wp-config.php, which can contain sensitive information.

The Import and export users and customers WordPress plugin before 1.20.5 does not properly escape data when exporting it via CSV files.

The Import and export users and customers WordPress plugin before 1.19.2.1 does not sanitise and escaped imported CSV data, which could allow high privilege users to import malicious javascript code and lead to Stored Cross-Site Scripting issues

Import and export users and customers WordPress Plugin through 1.15.5.11 allows CSV injection via a customer's profile.