CVE-2023-22491:Cross-site scripting vulnerability in gatsby-transformer-remark plugin allows JavaScript injection through unsanitized input.

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The gatsby-transformer-remark plugin for Gatsby framework, versions prior to 5.25.1 and 6.3.2, contains a cross-site scripting (XSS) vulnerability (CWE-79). The plugin passes unsanitized input to the 'gray-matter' npm package, which is vulnerable to JavaScript injection in its default configuration. When querying MarkdownRemark nodes via GraphQL in data mode, injected JavaScript can execute in the context of the build server. This vulnerability requires untrusted or unsanitized input to be sourced by or added into files processed by gatsby-transformer-remark.

Overview

Gatsby is a popular open-source framework based on React for building websites and applications. The vulnerability affects the gatsby-transformer-remark plugin, which is used to parse Markdown files. The issue stems from the plugin's use of the gray-matter npm package without proper input sanitization. When processing Markdown files with untrusted content, an attacker could inject malicious JavaScript code that would execute during the build process. This could potentially lead to server-side code execution within the build environment, allowing attackers to access sensitive information or perform unauthorized actions.

Remediation

To address this vulnerability, users should:

  1. Update to gatsby-transformer-remark version 5.25.1 or 6.3.2 or later, which mitigates the issue by disabling the gray-matter JavaScript Frontmatter engine.
  2. If upgrading is not immediately possible, implement input sanitization for all content processed by the gatsby-transformer-remark plugin.
  3. Consider upgrading to the latest major release branch for all Gatsby plugins to ensure timely receipt of security updates and bug fixes.
  4. Review any content sources that feed into Markdown files processed by the plugin to ensure they are trusted or properly sanitized.
  5. Implement proper content validation and sanitization practices throughout the application, especially when handling user-generated content.

References

  1. GitHub Security Advisory: https://github.com/gatsbyjs/gatsby/security/advisories/GHSA-7ch4-rr99-cqcw
  2. CVE Details: CVE-2023-22491
  3. CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Manufacturing
    Manufacturing
  2. Management of Companies & Enterprises
    Management of Companies & Enterprises
  3. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  4. Retail Trade
    Retail Trade
  5. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  6. Public Administration
    Public Administration
  7. Transportation & Warehousing
    Transportation & Warehousing
  8. Accommodation & Food Services
    Accommodation & Food Services
  9. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
  10. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  11. Construction
    Construction
  12. Educational Services
    Educational Services
  13. Finance and Insurance
    Finance and Insurance
  14. Health Care & Social Assistance
    Health Care & Social Assistance
  15. Information
    Information
  16. Mining
    Mining
  17. Other Services (except Public Administration)
    Other Services (except Public Administration)
  18. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  19. Utilities
    Utilities
  20. Wholesale Trade
    Wholesale Trade

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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