Sanitization bypass using HTML Entities
Published: April 18th, 2016
Reported by: Matt Austin
marked is an application that is meant to parse and compile markdown.
Due to the way that marked parses input, specifically HTML entities, it's possible to bypass marked's content injection protection (
sanitize: true) to inject a
This flaw exists because
&#xNNanything; gets parsed to what it could and leaves the rest behind, resulting in just
anything; being left.
If a malicious user could provide this input to the application
Upgrade to version 0.3.6 or greater.