A Local File Inclusion (LFI) vulnerability exists in Sitecom WLX-2006 Wall Mount Range Extender N300 v1.5 and before, which allows an attacker to manipulate the "language" cookie to include arbitrary files from the server. This vulnerability can be exploited to disclose sensitive information.
https://github.com/Emm448/vulnerability-research/tree/main/CVE-2024-40112
http://www.sitecomlearningcentre.com/products/wlx-2006v1001/wi-fi-range-extender-n300/downloads