Directory Traversal in File Upload in Gleamtech FileVista 9.2.0.0 allows remote attackers to achieve Code Execution, Information Disclosure, and Escalation of Privileges via injecting malicious payloads in HTTP requests to manipulate file paths, bypass access controls, and upload malicious files.
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.