CVE-2026-20059 — Cross-site Scripting in Cisco Unity Connection

CWE-79 — Cross-site Scripting4 documents4 sources
Severity
6.1MEDIUMNVD
EPSS
0.0%
top 88.01%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Cisco Unity Connection
Timeline
PublishedApr 15

Description

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…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.7

Affected Packages1 packages

▶CVEListV5cisco/cisco_unity_connection12 versions+11

🔴Vulnerability Details

3
GHSA
GHSA-83qv-c52p-jx5j: A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct a reflected↗2026-04-15
▶
VulDB
Cisco Unity Connection up to 15SU4 Web-based Management Interface cross site scripting (cisco-sa-unity-vulns-n2EJSbbw / EUVD-2026-22951)↗2026-04-15
▶
CVEList
Cisco Unity Connection Reflected Cross-Site Scripting Vulnerability↗2026-04-15
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CVE-2026-20059 — Cross-site Scripting in Cisco | cvebase