Today we received a notification about possible XSS vulnerability of our extension Helpdesk MX for Magento 1.
This issue affects versions before 1.5.3 (was released on September 13, 2017).
If you have an older version please login to your account in our store, download the latest one and update the extension.
We are sorry about this issue. We are notifying all our customers who may have affected version of extension and asking them to upgrade urgently.