SB2026040174 - Multiple XSS vulnerabilities in Cisco Unified Computing System (UCS)
Published: April 1, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 vulnerabilities.
1) Reflected cross-site scripting (CVE-ID: CVE-2026-20085)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 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/E:U/U:Clear
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in Cisco IMC. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Stored cross-site scripting (CVE-ID: CVE-2026-20087)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 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/E:U/U:Clear
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.
3) Stored cross-site scripting (CVE-ID: CVE-2026-20088)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 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/E:U/U:Clear
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.
4) Stored cross-site scripting (CVE-ID: CVE-2026-20089)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 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/E:U/U:Clear
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.
5) Stored cross-site scripting (CVE-ID: CVE-2026-20090)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: 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/E:U/U:Clear
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.
Remediation
Install update from vendor's website.
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cimc-xss-A2tkgVAB
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwr60930
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07154
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07159
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwr60933
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07239
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07240
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwr60939
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07351
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07501
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwr60943
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07585
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwr60944
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07589
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07591
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwr60948
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07596
- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws07597