Directory traversal vulnerability in shared/package-installer in Domain Technologie Control (DTC) before 0.34.1 allows remote authenticated users to execute arbitrary PHP code via a .. (dot dot) in the pkg parameter in a do_install action to dtc/.
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.