CVE-2026-20059 MEDIUM

CVE-2026-20059: Cisco Unity Connection Reflected Cross-Site Scripting Vulnerability

Vendor Cisco
Product Cisco Unity Connection
Weakness CWE-79 · XSS
Published April 15, 2026
Last update April 15, 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 Unity Connection could allow an unauthenticated, remote attacker to conduct a reflected 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

April 15, 2026 CVE published
April 15, 2026 Record updated