---
id: CVE-2025-20296
title: "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.\r\n\r\nThis vulnerabilit…"
summary: "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.\r\n\r\nThis vulnerabilit…"
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: cisco
product: ucs_manager
affected:
  - ucs_manager < 4.2\(3p\)
  - 'ucs_manager >= 4.3\(2b\), < 4.3\(6a\)'
patched:
  - ucs_manager 4.3\(6a\)
published: '2025-08-27'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T18:28:53.610'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-20296'
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-xss-Ey6XhyPS
    label: psirt@cisco.com
  - url: 'https://software.cisco.com'
tags:
  - nvd
  - csaf
  - vendor-advisory
  - cisco
epss: 0.00234
epssPercentile: 0.12778
ingestedAt: '2026-09-17T20:28:02.736Z'
---

## Overview

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.

## Affected

- `ucs_manager < 4.2\(3p\)`
- `ucs_manager >= 4.3\(2b\), < 4.3\(6a\)`

## Remediation

Upgrade past the affected range:

- `ucs_manager 4.3\(6a\)`

## Vendor advisories

- **cisco-sa-ucs-xss-Ey6XhyPS** · Cisco · affected: Cisco Unified Computing System (Managed) · updated 2025-08-27 · [advisory](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-xss-Ey6XhyPS)