Cross-site request forgery (CSRF) vulnerability in MailEnable Professional before 2.37 allows remote attackers to modify arbitrary configurations and perform unauthorized actions as arbitrary users via a link or IMG tag.

Multiple cross-site scripting (XSS) vulnerabilities in MailEnable Professional before 2.37 allow remote attackers to inject arbitrary Javascript script via (1) e-mail messages and (2) the ID parameter to (a) right.asp, (b) Forms/MAI/list.asp, and (c) Forms/VCF/list.asp in mewebmail/base/default/lang/EN/.

The SMTP service of MailEnable Standard 1.92 and earlier, Professional 2.0 and earlier, and Enterprise 2.0 and earlier before the MESMTPC hotfix, allows remote attackers to cause a denial of service (application crash) via a HELO command with a null byte in the argument, possibly triggering a length inconsistency or a missing argument.

Webmail in MailEnable Professional Edition before 1.73 and Enterprise Edition before 1.21 allows remote attackers to cause a denial of service (CPU consumption) via unspecified vectors involving "incorrectly encoded quoted-printable emails".

IMAP service in MailEnable Professional Edition before 1.72 allows remote attackers to cause a denial of service (service crash) via unspecified vectors involving the EXAMINE command.

Unknown vulnerability in the HTTPMail service in MailEnable Professional before 1.6 has unknown impact and attack vectors.

MailEnable Professional Edition before 1.53 and Enterprise Edition before 1.02 allows remote attackers to cause a denial of service (crash) via malformed (1) SMTP or (2) IMAP commands.