CVE-2026-20059
Cisco Unity Connection Reflected Cross-Site Scripting Vulnerability
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 the affected interface or access sensitive, browser-based information.
Weakness: CWE-79
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Unity Connection | Other Products | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Unity Connection
Vendor advisory
Cisco Unity Connection Cross-Site Scripting, Open Redirect, and SQL Injection Vulnerabilities
Cisco’s rating: Medium (advisory CVSS 6.1) · Published Apr 15, 2026
Bug IDs: CSCwq36796 , CSCwq36822 , CSCwq36828
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from