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.

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/.

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.

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.

Unspecified vulnerability in the POP service in MailEnable Standard Edition before 1.94, Professional Edition before 1.74, and Enterprise Edition before 1.22 has unknown attack vectors and impact related to "authentication exploits". NOTE: this is a different set of affected versions, and probably a different vulnerability than CVE-2006-1337.

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".

Buffer overflow in the POP 3 (POP3) service in MailEnable Standard Edition before 1.93, Professional Edition before 1.73, and Enterprise Edition before 1.21 allows remote attackers to execute arbitrary code via unknown vectors before authentication.

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 SMTP service in MailEnable Standard before 1.9 and Professional before 1.6 allows remote attackers to cause a denial of service (crash) during authentication.

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