XBMC ≤ 11.0 Web Server Path Traversal

XBMC version 11.0 contains a path traversal vulnerability in its embedded HTTP server. When accessed via HTTP Basic Authentication, the server fails to properly sanitize URI input, allowing authenticated users to request files outside the intended document root. An attacker can exploit this flaw to read arbitrary files from the host filesystem, including sensitive configuration or credential files.

XBMC 13.0 uses world-readable permissions for .xbmc/userdata/sources.xml, which allows local users to obtain user names and passwords by reading this file.