Secure Firewall Management Center
CVE-2023-20206: Multiple in Cisco Firepower Management Center
Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected device.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.6 | See the advisory |
| Cisco Firepower Management Center 6.7 | See the advisory |
| Cisco Firepower Management Center 6.7 | See the advisory |
| Cisco Firepower Management Center 6.7 | See the advisory |
| Cisco Firepower Management Center 6.7 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.0 | See the advisory |
| Cisco Firepower Management Center 7.1 | See the advisory |
| Cisco Firepower Management Center 7.1 | See the advisory |
| Cisco Firepower Management Center 7.1 | See the advisory |
| Cisco Firepower Management Center 7.1 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.2 | See the advisory |
| Cisco Firepower Management Center 7.3 | See the advisory |
| Cisco Firepower Management Center 7.3 | See the advisory |
| Cisco Firepower Management Center 7.3 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected device. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit these vulnerabilities by inserting crafted input into various data fields in an affected interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface, or access sensitive, browser-based information. In some cases, it is also possible to cause a temporary availability impact to portions of the FMC Dashboard.
Exploitation
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.