Brave: Admin Panel Access

** Steps to reproduce** While browsing through the https://blog.brave.com/admin, it is getting redirected to a admin login panel https://brave.ghost.io/ghost/signin/. **Consequence** An attacker can easily enumerate this admin panel with the url such as https://blog.brave.com/admin and with brute force attack this can be bypassed, but I didn't do that. If a known ghost.io vulnerability exists there can be chances of even taking over the sub domain. **Remediation** It's recommended to give custom directory names instead of easily guessable names such as "admin" for such sensitive directories. Please find the attached screenshots.