medium
6.1
CWE
79
Advisory Published
Advisory Published
Updated

CVE-2024-21535: XSS

First published: Tue Oct 15 2024(Updated: )

Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown.

Credit: report@snyk.io report@snyk.io

Affected SoftwareAffected VersionHow to fix
npm/markdown-to-jsx<7.4.0
7.4.0
Quantizor Markdown-to-jsx<7.4.0
IBM Security Verify Governance - Identity Manager<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Software Stack<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Virtual Appliance<=ISVG 10.0.2
IBM Security Verify Governance Identity Manager Container<=ISVG 10.0.2

Remedy

https://github.com/quantizor/markdown-to-jsx/commit/8eb74da825c0d8d2e9508d73c672bcae36ba555a

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2024-21535?

    CVE-2024-21535 is classified as a high severity vulnerability due to the potential for Cross-site Scripting (XSS) attacks.

  • How do I fix CVE-2024-21535?

    To fix CVE-2024-21535, update the markdown-to-jsx package to version 7.4.0 or later.

  • What types of attacks are possible with CVE-2024-21535?

    CVE-2024-21535 allows attackers to execute arbitrary code via XSS by injecting malicious elements within the markdown.

  • Which versions are affected by CVE-2024-21535?

    CVE-2024-21535 affects all versions of the markdown-to-jsx package prior to 7.4.0.

  • Who is the vendor associated with CVE-2024-21535?

    CVE-2024-21535 is associated with the vendor Quantizor, which maintains the markdown-to-jsx package.

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