OSS Endpoint Manager is an endpoint manager module for FreePBX. OSS Endpoint Manager module activation can allow authenticated web users unauthorized access to read system files with the permissions of the webserver process. This vulnerability is fixed in 14.0.4.
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.