Extreme EAC Appliance 8.4.1.24 allows unauthenticated reflected XSS via a parameter in a GET request.
https://gtacknowledge.extremenetworks.com/articles/Solution/000051136
https://gtacknowledge.extremenetworks.com
https://documentation.extremenetworks.com/release_notes/netsight/XMC_8.5.0_Release_Notes.pdf