setThumbnailRC Directory Path Traversal Allows Unauthenticated Arbitrary File Read Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of LG LED Assistant. Authentication is not required to exploit this vulnerability. The specific flaw exists within the /api/installation/setThumbnailRc endpoint. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the current user.