Multiple Content Injection Vulnerabilities Affecting marked package, versions [,0.3.1)

  • Attack Complexity


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  • snyk-id


  • published

    6 Nov 2015

  • disclosed

    6 Nov 2015

  • credit

    Adam Baldwin

How to fix?

Upgrade to version 0.3.1 or later


Marked comes with an option to sanitize user output to help protect against content injection attacks.

sanitize: true

Even if this option is set, marked is vulnerable to content injection in multiple locations if untrusted user input is allowed to be provided into marked and that output is passed to the browser.

Injection is possible in two locations

  • gfm codeblocks (language)
  • javascript url's

Source: Node Security Project