A vulnerability in the HTTP module of the Cisco Security Manager (CSM) could allow an unauthenticated, remote attacker to conduct reflective cross-site scripting attacks. The vulnerability is due to insufficient validation of user-supplied input submitted to the vulnerable CSM web interface. An attacker could exploit this vulnerability by convincing a user to follow a malicious link. An exploit could allow the attacker to execute arbitrary script code in the context of the affected site or allow the attacker to access sensitive browser-based information. Cisco has confirmed the vulnerability; however, software updates are not available. To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the link.