Easy Digital Downloads version 1.1.5 was released a few minutes ago and one of the focuses for this release was improvements to file security. A few days ago a user reported that he had found a massive security flaw in the plugin that allowed site visitors to find and browse (and download) any product download files without purchasing them. This flaw was caused primarily by a bug in the plugin, but also by an oversight on my part when I originally setup the file storage structure. With a few simple changes, this issue has been resolved and your files are