A vulnerability has been identified in SCALANCE X-200 IRT (All versions < V5.4.1), SCALANCE X300 (All versions). The integrated configuration web server of the affected Scalance X Switches could allow Cross-Site Scripting (XSS) attacks if unsuspecting users are tricked into accessing a malicious link. User interaction is required for a successful exploitation. The user must be logged into the web interface in order for the exploitation to succeed.