SB2026022611 - Stored XSS in Cisco FXOS and UCS Manager
Published: February 26, 2026
Security Bulletin ID
SB2026022611
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stored cross-site scripting (CVE-ID: CVE-2026-20091)
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 the web-based management interface. A remote user with Administrator or AAA Administrator role can permanenlty inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Remediation
Install update from vendor's website.