CVE-2025-20303: XSS

Published Nov 5, 2025
·
Updated

Multiple vulnerabilities in the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to conduct a reflected XSS attack against a user of the interface. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface of an affected system. 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 affected interface or access sensitive, browser-based information. To exploit these vulnerabilities, the attacker must have at least a low-privileged account on the affected device.

Affected Software

23 affected components
Cisco ISE
Cisco ISE-PIC
Cisco Identity Services Engine<=3.1.0
Cisco Identity Services Engine=3.2.0
Cisco Identity Services Engine=3.2.0-patch1
Cisco Identity Services Engine=3.2.0-patch2
Cisco Identity Services Engine=3.2.0-patch3
Cisco Identity Services Engine=3.2.0-patch4
Cisco Identity Services Engine=3.2.0-patch5
Cisco Identity Services Engine=3.2.0-patch6
Cisco Identity Services Engine=3.2.0-patch7
Cisco Identity Services Engine=3.3.0
Cisco Identity Services Engine=3.3.0-patch1
Cisco Identity Services Engine=3.3.0-patch2
Cisco Identity Services Engine=3.3.0-patch3
Cisco Identity Services Engine=3.3.0-patch4
Cisco Identity Services Engine=3.3.0-patch5
Cisco Identity Services Engine=3.3.0-patch6
Cisco Identity Services Engine=3.3.0-patch7
Cisco Identity Services Engine=3.4.0
Cisco Identity Services Engine=3.4.0-patch1
Cisco Identity Services Engine=3.4.0-patch2
Cisco Identity Services Engine=3.4.0-patch3

Event History

Nov 5, 2025
CVE Published
via MITRE·04:32 PM
Data Sourced
via MITRE·04:32 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-20303?

The severity of CVE-2025-20303 is considered high due to the potential for reflected XSS attacks.

2

How do I fix CVE-2025-20303?

To fix CVE-2025-20303, ensure you apply the latest security updates provided by Cisco for ISE and ISE-PIC.

3

What types of attacks does CVE-2025-20303 allow?

CVE-2025-20303 allows authenticated, remote attackers to conduct reflected XSS attacks.

4

Which software is affected by CVE-2025-20303?

CVE-2025-20303 affects Cisco ISE and Cisco ISE-PIC web-based management interfaces.

5

Who is at risk from CVE-2025-20303?

Users of the Cisco ISE and Cisco ISE-PIC web interfaces are at risk from CVE-2025-20303.

Contact

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