This indicates an attack attempt to exploit an HTML-injection vulnerability in
Cisco IOS Web Server.
The vulnerability is a result of the application's failure to properly sanitize user input before using it in some packets. As a result, a remote attacker can send a crafted packet to execute web scripts or HTML on a vulnerable server.
Cisco IOS from version 11.0 through version 12.4
System Compromise: Remote attackers can gain control of vulnerable systems.
Disable the HTTP server on the Cisco router until path is released from the vendor.