CVE-2020-3340: Cisco Identity Services Engine

Medium severity, CVSS 4.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Multiple vulnerabilities in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker with administrative credentials 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 that is processed by the web-based management interface. An attacker could exploit these vulnerabilities by injecting malicious code into specific pages of the 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. To exploit these vulnerabilities, an attacker would need valid administrative credentials.

Affected products

• Cisco Identity Services Engine: before 2.6.0 (fixed in 2.6.0); version 2.6.0 only

Published 2020-07-02. Last modified 2026-06-17.