The plugin does not validate and sanitise the affiliate data, which could allow users registering as affiliate to perform CSV injection attacks against an admin exporting the data
Register as an affiliate and put the following payload in the Firstname, Lastname or Company fields: =10+2+30
As admin, export the Affiliates as CSV (/wp-admin/admin.php?page=wpam-affiliates&tab=export_data) and open the CSV. The formula from the payload will be processed