CVE-2020-3320: Cisco Firepower Management Center Cross-Site Scripting Vulnerability

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-08 · updated 2026-06-17
Weakness: CWE-79

Description

A vulnerability in the web-based management interface 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-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by first entering input within the web-based management interface and then persuading a user of the interface to view the crafted input within the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Affected products

Cisco Firepower Management Center: through 6.6.1
Cisco Sourcefire Defense Center: 6.4.0, 6.4.0.6, 6.5.0, 6.6.0

References

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