CVE-2019-12631: Cisco Identity Services Engine

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

A vulnerability in the web-based guest portal of Cisco Identity Services Engine (ISE) 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 that is processed by the web-based management interface. An attacker could exploit this vulnerability by persuading a user 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 Identity Services Engine: up to and including 2.3; version 2.4 only; version 2.6 only

Published 2019-10-02. Last modified 2026-06-17.