Description

I noticed, your website is very secure.

But you overlooked a flaw XSS

Detail:

1 .Login with demo account.

2 .Go to the link: https://demo.librenms.org/ports

3 .Insert payload and press enter:

 test' onclick='alert(document.cookie)

4 .Click on the box hostname or port, detect XSS

Proof of Concept

Video Poc

https://drive.google.com/file/d/1cI0mEezarvgdn5t3iJ6ILl-LSXZL0_Ek/view?usp=sharing