In Erxes <1.6.2, an authenticated attacker can write to arbitrary files on the system using a Path Traversal vulnerability in the importHistoriesCreate GraphQL mutation handler.
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.