XSS in Cisco Unified Contact Center Express

CVE-2025-20279

A vulnerability in the web-based management interface of Cisco Unified CCX could allow an authenticated, remote attacker to conduct a stored XSS attack on an affected system. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper sanitization of user input to the web-based management interface. An attacker could exploit this vulnerability by submitting a malicious script through the interface. A successful exploit could allow the attacker to conduct a stored XSS attack on the affected system.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (13.1th percentile) — read the EPSS interpretation.