Eventer <= 3.9.7 - Authenticated (Subscriber+) Arbitrary File Read

The Eventer plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 3.9.7 via the eventer_woo_download_tickets() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information.