Exposure of Sensitive Information to an Unauthorized Actor
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.
CWE-200 - Information Exposure
An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.