Path traversal attack is possible and write outside of the intended directory and may access sensitive information. If a file name is specified that already exists on the file system, then the original file will be overwritten.
Solution:
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.