Cross-site Scripting (XSS) Affecting sanitize-html Open this link in a new tab package, versions <1.4.3


0.0
medium
  • Attack Complexity

    Low

  • User Interaction

    Required

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  • snyk-id

    npm:sanitize-html:20141024

  • published

    6 Nov 2015

  • disclosed

    6 Nov 2015

  • credit

    Unknown

Overview

Since the sanitize-html module trusts 'text' coming from htmlparser2, and outputs it without further escaping (because htmlparser2 does not decode entities in text before delivering it), this results in an XSS attack vector if sanitize-html ignores the img tag (according to user-configured filter rules) but passes the text intact, as it must do to keep any text in documents.