Yapscan's report receiver server 0.18.0 up to 0.19.0 is vulnerable to path traversal and log injection. If you make use of the report receiver server (experimental), a client may be able to forge requests such that arbitrary files on the host can be overwritten (subject to permissions of the yapscan server), leading to loss of data. This is particularly problematic if you do not authenticate clients and/or run the server with elevated permissions. Version 0.19.1 contains a patch for this issue.