Directory Traversal vulnerability in AdminLTE 3.1.0 allows remote attackers to gain escalated privilege and view sensitive information via /admin/index2.html, /admin/index3.html URIs. Note: AdminLTE developers dispute that this a weakness with AdminLTE and is instead a misconfiguration error on various websites by the website developers.
https://github.com/ColorlibHQ/AdminLTE/issues/4948
https://gist.github.com/cybersaki/31ffe679a5552c1047164e3a5b01c2fd