---
id: CVE-2025-20361
title: >-
  A vulnerability in the web-based management interface of Cisco Unified
  Communications Manager (Unified CM) and Cisco Unified Communications Manager
  Session Management Edition (Unified CM SME) could allow an authenticated,
  remote attacker…
summary: >-
  A vulnerability in the web-based management interface of Cisco Unified
  Communications Manager (Unified CM) and Cisco Unified Communications Manager
  Session Management Edition (Unified CM SME) could allow an authenticated,
  remote attacker…
severity: medium
cvss: 4.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2025-10-01'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T15:10:00.207'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-20361'
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-stored-xss-Fnj66YLy
    label: psirt@cisco.com
tags:
  - nvd
epss: 0.00222
epssPercentile: 0.11739
ingestedAt: '2026-10-12T15:55:08.061Z'
---

## Overview

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface.

This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code 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 have valid administrative credentials.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.