Multiple directory traversal vulnerabilities in telepark.wiki 2.4.23 and earlier allow remote attackers to read arbitrary files via directory traversal sequences in the css parameter to (1) getjs.php and (2) getcsslocal.php; and include and execute arbitrary local files via the (3) group parameter to upload.php.
Improper Limitation of a Pathname to a Restricted Directory 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.