react-marked-markdown@1.4.6 vulnerabilities

Some React Components to use Markdown easily

Direct Vulnerabilities

Known vulnerabilities in the react-marked-markdown package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • C
Cross-site Scripting (XSS)

react-marked-markdown is a react components package that helps you use Markdown easily.

Affected versions of this package are vulnerable to cross-site scripting (XSS) via href attributes. It uses marked.Render() but overwrites the link method with a custom version that doesn't correctly escape values passed to the href prop of anchor components.

Proof of concept:

import React from 'react'
import ReactDOM from 'react-dom'
import { MarkdownPreview } from 'react-marked-markdown'

markedOptions={{ sanitize: true }}
value={'[XSS](javascript: alert`1`)'}

How to fix Cross-site Scripting (XSS)?

There is no fix version for react-marked-markdown.