SB20260917243 - Cross-Site Scripting in Cisco Identity Services Engine

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2026-20309)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]

The vulnerability allows a remote attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

The vulnerability exists due to improper input validation in the web-based management interface of Cisco Identity Services Engine when processing user-supplied input. A remote attacker can persuade a user of the interface to click a crafted link to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

User interaction is required to click the crafted link.

Remediation

Install update from vendor's website.

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-Uz9VWRQ
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss-Uz9VWRQ