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Cross-site Scripting (XSS) Affecting editor.md package, versions >0.0.0

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Scope Changed

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.09% (37th percentile)
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NVD
6.1 medium

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  • Snyk ID SNYK-JS-EDITORMD-536076
  • published 26 Nov 2019
  • disclosed 1 Aug 2019
  • credit pzyc0k
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Introduced: 1 Aug 2019

CVE-2019-14517 Open this link in a new tab
CWE-79 Open this link in a new tab

How to fix?

There is no fixed version for editor.md.

Overview

editor.md is a open source embeddable online markdown editor (component), based on CodeMirror & jQuery & Marked.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the Javascript: string.

##POC by pzyc0k: [xss poc](Javascript:alert("pzyc0 poc xss with cookie: " + document.cookie))

References