What’s Vulnerable › Vulnerabilities

CVE-2022-36036: Improper Control of Generation of Code ('Code Injection') in mdx-mermaid

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-08-29 · updated 2026-06-17
• Weakness: CWE-94

Description

mdx-mermaid provides plug and play access to Mermaid in MDX. There is a potential for an arbitrary javascript injection in versions less than 1.3.0 and 2.0.0-rc1. Modify any mermaid code blocks with arbitrary code and it will execute when the component is loaded by MDXjs. This vulnerability was patched in version(s) 1.3.0 and 2.0.0-rc2. There are currently no known workarounds.

Affected products

• sjwall mdx-mermaid: from 0.0.1 before 1.3.0; 2.0.0-rc1 — fixed in 1.3.0

How to fix

Upgrade to a fixed version: sjwall mdx-mermaid 1.3.0. Check the vendor advisory for mitigations.

References

• https://github.com/sjwall/mdx-mermaid/commit/f2b99386660fd13316823529c3f1314ebbcdfd2a
• https://github.com/sjwall/mdx-mermaid/security/advisories/GHSA-rvgm-35jw-q628
• https://github.com/sjwall/mdx-mermaid/commit/f2b99386660fd13316823529c3f1314ebbcdfd2a
• https://github.com/sjwall/mdx-mermaid/security/advisories/GHSA-rvgm-35jw-q628

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