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CVE-2020-3149: Cisco Identity Services Engine Stored Cross-Site Scripting Vulnerability

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-05 · updated 2026-06-17
• Weakness: CWE-79

Description

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) Software could allow an authenticated, remote attacker to perform a stored cross-site scripting (XSS) attack on an affected device. The vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by providing malicious data to a specific field within 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. Cisco ISE Software releases 2.7.0 and later contains the fix for this vulnerability.

Affected products

• Cisco Identity Services Engine: before 2.7 — fixed in 2.7

How to fix

Upgrade to a fixed version: Cisco Identity Services Engine 2.7. Check the vendor advisory for mitigations.

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-DxJsRWRx
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-DxJsRWRx

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