A vulnerability in the NuPoint Unified Messaging (NPM) component of Mitel MiCollab through 9.8 SP2 (9.8.2.12) could allow an unauthenticated attacker to conduct a path traversal attack due to insufficient input validation. A successful exploit could allow unauthorized access, enabling the attacker to view, corrupt, or delete users' data and system configurations.
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.