With the release of version 4.0 of the library and inclusion of new plugins and advanced content features, the project was renamed to MarkdownMaster CMS to signify that it was a completely new reimagining of the original concept.
While any software has the potential of security threats, minimizing the exposure footprint goes a long way to helping keep your site secure. Besides crazy-fast performance giving a nice boost to SEO and user experience, having minimal server-side code greatly reduces the number of threat vectors exposed to the malicious actors.
Wordpress, for example, utilizes a login page visible to the general public to make content additions and modifications to the site. This can pose a security risk as malicious actors can attempt to brute force this login.
Since MarkdownMaster CMS does not have any login or user sessions, it completely removes the possibility of this as a security factor. Accessing the files still must be done somehow however, but managing the security of this authentication is offloaded to your hosting provider.
(As a caveat to that, any hosting provider recommending unencrypted FTP should be avoided like a plague! Only use encrypted SSH-based SFTP connections, ideally with a key, or host-provided web portals for uploading files.)
Having developed and supported a number of sites for years, including Wordpress, Charlie Powell built out the framework of MarkdownMaster CMS to have the ability to quickly publish articles and posts without having to fight with nuance interfaces and bugs inherit with web publishing platforms.
Especially for simple brochure-style websites and blog platforms, the capabilities of current web publishing tools is just excessive and often results in laggy and cumbersome user experiences. Not to mention the necessary amount of server-side caching required to get acceptable performance out of a piece of software with three dozen hooks from a dozen plugins is frustrating to deploy and manage.
With MarkdownMaster CMS, publishing a new post is just a matter of creating a markdown text file and jotting down your thoughts. Having simple plain text files allows you to quickly archive and search through your content without needing third party tools or database utilities.