A vulnerability in the web framework of Cisco Firepower Management Center could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web interface of the affected software. The vulnerability is due to insufficient validation of user-supplied input by the affected software. Successful exploitation of this vulnerability could allow the attacker to execute arbitrary code in the context of the affected system. Cisco Bug IDs: CSCvc38983.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-firepower-2