CVE-2021-40121: Cisco Identity Services Engine Cross-Site Scripting Vulnerabilities

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-21 · updated 2026-06-17
Weakness: CWE-79

Description

Multiple vulnerabilities in the web-based management interface of Cisco Identity Services Engine (ISE) Software could allow an attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. For more information about these vulnerabilities, see the Details section of this advisory.

Affected products

Cisco Identity Services Engine: through 2.6; 2.6(0.156), 2.6(0.999), 2.6.0, 2.6.0-patch1, 2.6.0-patch2, 2.6.0-patch3 (+18)

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss1-rgxYry2V
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-xss1-rgxYry2V

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