Authenticated mail users, under specific circumstances, could add files with unsanitized content in public folders where the IIS user had permission to access. That action, could lead an attacker to store arbitrary code on that files and execute RCE commands.
MailEnable before 8.60 allows Directory Traversal for reading the messages of other users, uploading files, and deleting files because "/../" and "/.. /" are mishandled.
MailEnable before 8.60 allows Privilege Escalation because admin accounts could be created as a consequence of %0A mishandling in AUTH.TAB after a password-change request.
Cross-site scripting (XSS) vulnerability in ForgottenPassword.aspx in MailEnable Professional, Enterprise, and Premium 4.26 and earlier, 5.x before 5.53, and 6.x before 6.03 allows remote attackers to inject arbitrary web script or HTML via the Username parameter.