Path traversal vulnerability exists in Machine Automation Controller NJ Series and Machine Automation Controller NX Series. An arbitrary file in the affected product may be accessed or arbitrary code may be executed by processing a specially crafted request sent from a remote attacker with an administrative privilege. As for the details of the affected product names/versions, see the information provided by the vendor under [References] section.
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.