affiliate-toolkit WordPress plugin vulnerabilities

The affiliate-toolkit WordPress plugin before 3.8.9 does not validate a user-supplied sort value against an allowlist before using it in a database query, and the affected administrative list screen requires only a lower-privilege capability rather than an administrator one, so users with editor-level access and above can perform SQL injection and read arbitrary information from the database. On multisite a sub-site editor can read the network-global users table, including the super administrator's password hash.

The affiliate-toolkit WordPress plugin before version 3.9.1 does not prevent a low-privileged user from supplying a template body that its bundled templating engine compiles and executes as PHP, allowing users with the Contributor role or above to run arbitrary PHP code on the server.

The affiliate-toolkit plugin for WordPress, up to and including version 3.8.8, is vulnerable to time-based SQL Injection via the 'orderby' parameter. The vulnerability is due to insufficient escaping of the user-supplied parameter and lack of sufficient preparation of the existing SQL query. This allows authenticated attackers with administrator-level access and above to append additional SQL queries to existing ones, which can be used to extract sensitive information from the database.