The Mobile Edition of TransWARE Active! mail 2003 build 2003.0139.0871 and earlier, and possibly other versions before 2003.0139.0911, does not remove the session ID in a Referer URL, which allows remote attackers to hijack web sessions via vectors such as an email with an embedded URL.

TransWARE Active! mail 2003 build 2003.0139.0871 and earlier does not properly secure the session ID in a session cookie, which allows remote attackers to hijack web sessions, probably related to the "secure" flag for cookies in SSL sessions.

CRLF injection vulnerability in TransWARE Active! mail 6 build 6.40.010047750 and earlier allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

TransWARE Active! mail 6, when an external public interface is used, allows local users to obtain sensitive information belonging to arbitrary users by leveraging shell access, as demonstrated by a TELNET or SSH session to the server.