A improper limitation of a pathname to a restricted directory ('path traversal') in Fortinet FortiWeb versions 7.0.0 through 7.6.0 allows attacker to execute unauthorized code or commands via crafted requests.
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.