The Swift Performance Lite WordPress plugin before 2.3.7.4 does not properly sanitize and escape a value before using it in a SQL statement, which could allow users with the author role and above to perform SQL injection attacks.

The Swift Performance Lite plugin for WordPress is vulnerable to Local PHP File Inclusion in all versions up to, and including, 2.3.7.1 via the 'ajaxify' function. This makes it possible for unauthenticated attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

The Swift Performance Lite plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the ajaxhandler() function in all versions up to, and including, 2.3.6.18. This makes it possible for authenticated attackers, with subscriber-level access and above, to retrieve and modify settings.