DbGate is cross-platform database manager. In versions 6.4.3-premium-beta.5 and below, DbGate is vulnerable to a directory traversal flaw. The file parameter is not properly restricted to the intended uploads directory. As a result, the endpoint that lists files within the upload directory can be manipulated to access arbitrary files on the system. By supplying a crafted path to the file parameter, an attacker can read files outside the upload directory, potentially exposing sensitive system-level data. This is fixed in version 6.4.3-beta.8.
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory.