Multiple directory traversal vulnerabilities in Fonality trixbox allow remote attackers to read arbitrary files via a .. (dot dot) in the lang parameter to (1) home/index.php, (2) asterisk_info/asterisk_info.php, (3) repo/repo.php, or (4) endpointcfg/endpointcfg.php in maint/modules/.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.