source: https://www.securityfocus.com/bid/26465/info

Aruba MC-800 Mobility Controller is prone to an HTML-injection vulnerability because it fails to sufficiently sanitize user-supplied input data.

Exploiting this issue may allow an attacker to execute HTML and script code in the context of the affected site, to steal cookie-based authentication credentials, or to control how the site is rendered to the user; other attacks are also possible. 

https://www.example.com:4343/screens/%22/%3E%3Cscript%3Ealert(1)%3C/script%3E