WP Fastest Cache <= 0.8.9.0 - Unauthenticated Arbitrary File Deletion

Description

According to the original researcher:

"Although a successful exploit leads to data loss and potentially a DoS against the website, because wordpress won't find important files to run, there are several requirements which need to be met:

- WP Fastest Cache is installed and the cache is activated
- Wordpress is configured to use 'pretty' URL schemes, like /<data>/<title> etc.
- WP Postratings [1] is installed
- At least one ratable post or page was published"