CVE-2026-20089

A vulnerability in the web-based management interface of Cisco IMC could allow an authenticated, remote attacker with administrative privileges to conduct a stored XSS attack against a user of the interface. This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the browser of the targeted user or access sensitive, browser-based information.

Score

CVSS 3.1 4.8 Medium

Status

Analyzed - psirt@cisco.com

Published

2026-04-01

Last modified

2026-10-26

Weaknesses

CWE-79

Affected products

• Cisco Enterprise Nfv Infrastructure Software (Cisco)
• Cisco Unified Computing System E-series Software Ucse (Cisco)
• Cisco Unified Computing System Standalone (Cisco)
• Enterprise Nfv Infrastructure Software (Cisco)
• Unified Computing System (Cisco)
• Unified Computing System E-series Software (Cisco)

References

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-xss-A2tkgVAB