Clicking that link could show a clickable list of every file in the /backup/ folder, including database dumps, passwords, or source code.
The inurl:"view index.shtml" link query is a reminder that . What you don’t know about your own server, an attacker can discover in seconds. inurl view index shtml link
Once indexed, anyone entering that string into a search engine is presented with a list of live links. Clicking one often takes the user directly to a live control panel where they can see: Clicking that link could show a clickable list