CVE-2017-16006

Remarkable is a markdown parser. In versions 1.6.2 and lower, remarkable allows the use of data: URIs in links and can therefore execute javascript.

CVE-2014-10065

Certain input when passed into remarkable before 1.4.1 will bypass the bad protocol check that disallows the javascript: scheme allowing for javascript: url's to be injected into the rendered content.