SB2025060520 - Multiple vulnerabilities in Cisco Unified Contact Center Express
Published: June 5, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Deserialization of Untrusted Data (CVE-ID: CVE-2025-20276)
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in the web-based management interface. A remote administrator can pass specially crafted Java object to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Path traversal (CVE-ID: CVE-2025-20277)
The vulnerability allows a local user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in the web-based management interface. A local administrator can send a specially crafted HTTP request and read arbitrary files on the system, leading to arbitrary code execution
3) Stored cross-site scripting (CVE-ID: CVE-2025-20279)
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 user can permanently inject 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.
Remediation
Install update from vendor's website.