A lack of validation in the path parameter (/download) of GL-INet Beryl AX GL-MT3000 v4.7.0 allows attackers to download arbitrary files from the device's file system via a crafted POST request.
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.