The FTP service in Magic Winmail Server 4.0 Build 1112 does not verify that the IP address in a PORT command is the same as the IP address of the user of the FTP session, which allows remote authenticated users to use the server as an intermediary for port scanning.

Multiple directory traversal vulnerabilities in Magic Winmail Server 4.0 Build 1112 allow remote attackers to (1) upload arbitrary files via certain parameters to upload.php or (2) read arbitrary files via certain parameters to download.php, and remote authenticated users to read, create, or delete arbitrary directories and files via the IMAP commands (3) CREATE, (4) EXAMINE, (5) SELECT, or (6) DELETE.