XSS in Cisco Unified Computing System (Managed)

CVE-2025-20296

A vulnerability in the web-based management interface of Cisco UCS Manager Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected system. An attacker could exploit this vulnerability by injecting malicious data into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must be a member of the Administrator or AAA Administrator role.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (13.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-20296?
CVE-2025-20296 is a medium-severity vulnerability in Cisco Unified Computing System (Managed), classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-08-27.
How severe is CVE-2025-20296?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-20296 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.