This is about Frontpage, the parent post is about Dreamweaver.
Also it is misleading, the linked page is about the server-side Frontpage Extensions, if you used Frontpage as an HTML page editor you'd just get a static site which is as secure as any other site made of static HTML files.
https://insecure.org/sploits/Microsoft.frontpage.insecuritie...
(Edit: I originally said it auto-installed this. I misremembered what was going on and corrected.)