The remote host is vulnerable to a Cross-Site Scripting (XSS) attack.
The remote host is running NetCaptor. NetCaptor is a web browser that is installed 'over' Internet Explorer, using the IE core engine while adding functionality to the GUI. This version of NetCaptor is vulnerable to a flaw where a malicious website can spoof a domain via the Dialog box. An attacker exploiting this flaw may be able to access confidential data from the client.
Upgrade or patch according to vendor recommendations.