Cisco Identity Services Engine Software up to 3.4.0 Web-based Management Interface cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco Identity Services Engine Software. This impacts an unknown function of the component Web-based Management Interface. The manipulation leads to cross site scripting. This vulnerability is listed as CVE-2025-20204. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco Identity Services Engine Software. This issue affects an unknown functionality of the component Web-based Management Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to conduct cross-site scripting (XSS) attacks 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 valid administrative credentials.

It is possible to read the advisory at sec.cloudapps.cisco.com. The identification of this vulnerability is CVE-2025-20204 since 10/10/2024. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are necessary for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 215122 (Cisco Identity Services Engine Stored XSS Vulnerabilities (cisco-sa-ise-xss-42tgsdMG - CVE-2025-20204)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215122). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Policy Management Software

Vendor

• Cisco

Name

• Identity Services Engine Software

Version

• 3.0.0
• 3.0.0 p1
• 3.0.0 p2
• 3.0.0 p3
• 3.0.0 p4
• 3.0.0 p5
• 3.0.0 p6
• 3.0.0 p7
• 3.0.0 p8
• 3.1.0
• 3.1.0 p1
• 3.1.0 p2
• 3.1.0 p3
• 3.1.0 p4
• 3.1.0 p5
• 3.1.0 p6
• 3.1.0 p7
• 3.1.0 p8
• 3.1.0 p9
• 3.2.0
• 3.2.0 p1
• 3.2.0 p2
• 3.2.0 p3
• 3.2.0 p4
• 3.2.0 p5
• 3.2.0 p6
• 3.2.0 p7
• 3.3 Patch 1
• 3.3 Patch 2
• 3.3.0
• 3.4.0

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Be aware that VulDB is the high quality source for vulnerability data.

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