CVE-2019-15270: Cisco Firepower Management Center Firmware

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive, browser-based information.

Affected products

• Cisco Firepower Management Center Firmware: before 6.5.0 (fixed in 6.5.0)

Published 2019-10-16. Last modified 2026-06-17.