MDaemon Webmail (formerly WorldClient) has CSRF.

MDaemon Email Server 19 through 20.0.1 skips SpamAssassin checks by default for e-mail messages larger than 2 MB (and limits checks to 10 MB even with special configuration), which is arguably inconsistent with currently popular message sizes. This might interfere with risk management for malicious e-mail, if a customer deploys a server with sufficient resources to scan large messages.

MDaemon Webmail 14.x through 18.x before 18.5.2 has XSS (issue 1 of 2).

MDaemon Webmail 14.x through 18.x before 18.5.2 has XSS (issue 2 of 2).

Multiple cross-site scripting (XSS) vulnerabilities in Alt-N MDaemon Free 12.5.4 allow remote attackers to inject arbitrary web script or HTML via an e-mail message body with (1) the Cascading Style Sheets (CSS) expression property in conjunction with a CSS comment within the STYLE attribute of an IMG element, (2) the CSS expression property in conjunction with multiple CSS comments within the STYLE attribute of an arbitrary element, or (3) an innerHTML attribute within an XML document.

Multiple unspecified vulnerabilities in WorldClient in Alt-N MDaemon before 10.02 have unknown impact and attack vectors, probably related to cross-site scripting (XSS) and WorldClient DLL 10.0.1, a different vulnerability than CVE-2008-6893.

The WordClient interface in Alt-N Technologies MDaemon 9.6.5 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted HTTP POST request. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Stack-based buffer overflow in the IMAP server in Alt-N Technologies MDaemon 9.6.4 allows remote authenticated users to execute arbitrary code via a FETCH command with a long BODY.

Unspecified vulnerability in DomainPOP in Alt-N Technologies MDaemon before 9.61 allows remote attackers to cause a denial of service (crash) via malformed messages.

MDaemon 9.0.5, 9.0.6, 9.51, and 9.53, and possibly other versions, installs the MDaemon application folder with insecure permissions (Users create files/directories), which allows local users to execute arbitrary code by creating malicious RASAPI32.DLL or MPRAPI.DLL libraries in the MDaemon\APP folder, which is an untrusted search path element due to insecure permissions.