goform/websXMLAdminRequestCgi.cgi in Cisco Unified Videoconferencing (UVC) System 5110 and 5115, and possibly Unified Videoconferencing System 3545 and 5230, Unified Videoconferencing 3527 Primary Rate Interface (PRI) Gateway, Unified Videoconferencing 3522 Basic Rate Interfaces (BRI) Gateway, and Unified Videoconferencing 3515 Multipoint Control Unit (MCU), allows remote authenticated administrators to execute arbitrary commands via the username field, related to a "shell command injection vulnerability," aka Bug ID CSCti54059.