The wpDataTables – WordPress Data Table, Dynamic Tables & Table Charts Plugin plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'A' parameter in all versions up to, and including, 3.4.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
The wpDataTables WordPress plugin before 2.1.66 does not validate the "Serialized PHP array" input data before deserializing the data. This allows admins to deserialize arbitrary data which may lead to remote code execution if a suitable gadget chain is present on the server. This is impactful in environments where admin users should not be allowed to execute arbitrary code, such as multisite.