The remote host is vulnerable to a cross-site scripting (XSS) attack.
The remote host is using a version of Konqueror, a web browser, which is prone to a security flaw wherein a malicious website can spoof a third party domain within frames. An attacker exploiting this flaw would get the local user to 'trust' a remote spoofed domain. For example, if the malicious website were to spoof a trusted domain, the user may enter confidential information into the spoofed frame.
Upgrade or patch according to vendor recommendations.