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markdown-it-texmath@0.4.2 vulnerabilities

markdown-it extension for rendering TeX Math

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Direct Vulnerabilities

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

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

markdown-it-texmath is a that add TeX math equations to your Markdown documents rendered by markdown-it parser.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS). Within texmath.js, it is possible to bypass the current validation and inject JavaScript within math renderer.

PoC

$$"<img/src=./ onerror=alert(location)>
e^{i\theta} = i\sin\thetae^{i\theta}
$$

How to fix Cross-site Scripting (XSS)?

Upgrade markdown-it-texmath to version 0.9.0 or higher.

<0.9.0
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