CVE-2025-20331: Cisco Identity Services Engine Software

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a stored XSS attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability 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 affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have at least a low-privileged account on the affected device.

Affected products

• Cisco Cisco Identity Services Engine Software: version 3.1.0 only; version 3.1.0 p1 only; version 3.1.0 p3 only; version 3.1.0 p2 only; version 3.2.0 only; version 3.1.0 p4 only; …
• Cisco Cisco Ise Passive Identity Connector: version 3.3.0 only; version 3.4.0 only

Published 2025-08-06. Last modified 2026-06-17.