CVE-2025-20330 MEDIUM

CVE-2025-20330: Cisco Unified Communications Manager IM and Presence Cross-Site Scripting Vulnerability

Vendor Cisco
Product Cisco Unified Communications Manager IM and Presence Service
Weakness CWE-79 · XSS
Published September 3, 2025
Last update February 26, 2026

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

A vulnerability in the web-based management interface of Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, 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 persuading a user to click a crafted link. 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.

Key dates

02Disclosure timeline

September 3, 2025 CVE published
February 26, 2026 Record updated