Directory traversal vulnerability in the FileCollector servlet in ZOHO ManageEngine OpManager 11.4, 11.3, and earlier allows remote attackers to write and execute arbitrary files via a .. (dot dot) in the FILENAME parameter.
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.