Stored cross-site scripting in Cisco Unified Computing System (UCS) - CVE-2026-20089
Published: April 1, 2026
Vulnerability identifier: #VU124796
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-20089
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in Cisco IMC. A remote privileged user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Affected software
Cisco Unified Computing System (UCS)
How to mitigate CVE-2026-20089
Install updates from vendor's website.
Cisco Unified Computing System (UCS) - addressed in versions 4.3(6f), 6.0(2b)