CVE-2021-43861: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

December 30, 2021 (updated July 21, 2023)

Mermaid is a Javascript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams., malicious diagrams can run javascript code at diagram readers’ machines. Users should upgrade to to receive a patch. There are no known workarounds aside from upgrading.

References

github.com/mermaid-js/mermaid/commit/066b7a0d0bda274d94a2f2d21e4323dab5776d83
github.com/mermaid-js/mermaid/releases/tag/8.13.8
github.com/mermaid-js/mermaid/security/advisories/GHSA-p3rp-vmj9-gv6v
nvd.nist.gov/vuln/detail/CVE-2021-43861

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