SB2026041638 - Multiple vulnerabilities in Cisco Unity Connection
Published: April 16, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2026-20059)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the web-based management interface. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) SQL injection (CVE-ID: CVE-2026-20061)
The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.
The vulnerability exists due to insufficient sanitization of user-supplied data in the web-based management interface. A remote user can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.
Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.
3) Path traversal (CVE-ID: CVE-2026-20081)
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to improper sanitization of user input to the web-based management interface. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.
4) Path traversal (CVE-ID: CVE-2026-20078)
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to improper sanitization of user input to the web-based management interface. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.
Remediation
Install update from vendor's website.