A code injection vulnerability in HMS Networks Ewon Flexy 205 allows executing commands on system level on the device. This issue affects Ewon Flexy 205: through 14.8s0 (#2633).
All version of Ewon Flexy and Cosy prior to 14.1 use wildcards such as () under which domains can request resources. An attacker with local access and high privileges could inject scripts into the Cross-origin Resource Sharing (CORS) configuration that could abuse this vulnerability, allowing the attacker to retrieve limited confidential information through sniffing.