CVE-2016-10531: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

May 31, 2018 (updated October 9, 2019)

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 javascript: URL. This flaw exists because &#xNNanything; gets parsed to what it could and leaves the rest behind, resulting in just anything; being left.

References

github.com/chjj/marked/pull/592
github.com/chjj/marked/pull/592/commits/2cff85979be8e7a026a9aca35542c470cf5da523
nodesecurity.io/advisories/101
nvd.nist.gov/vuln/detail/CVE-2016-10531

Code Behaviors & Features

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