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. Affected Products: Cisco Firepower Management Center Releases 5.4.1.x and prior. More Information: CSCuy88951. Known Affected Releases: 5.4.1.6.
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170621-fmc1