What is CVE-2021-1456?

CVE-2021-1456 is a medium-severity vulnerability in Cisco Firepower Management Center, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-04-29.

How severe is CVE-2021-1456?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Cisco Firepower Management Center

CVE-2021-1456

Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit these vulnerabilities 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (46.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

Affected products

Cisco Firepower Management Center — versions n/a
Cisco Secure_firewall_management_center

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1456?: CVE-2021-1456 is a medium-severity vulnerability in Cisco Firepower Management Center, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-04-29.
How severe is CVE-2021-1456?: Medium severity. CVSS v3 base score is 4.8 out of 10.