What is CVE-2021-43861?

CVE-2021-43861 is a high-severity vulnerability in Mermaid-js Mermaid, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2021-12-30.

How severe is CVE-2021-43861?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Mermaid-js Mermaid

CVE-2021-43861

Mermaid is a Javascript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. Prior to version 8.13.8, malicious diagrams can run javascript code at diagram r…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (66.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mermaid-js Mermaid — versions < 8.13.8

Weakness classification (CWE)

References

github.com/mermaid-js/mermaid/security/advisories/GHSA-p3rp-vmj9-gv6v (x_refsource_CONFIRM)
github.com/mermaid-js/mermaid/commit/066b7a0d0bda274d94a2f2d21e4323dab5776d83 (x_refsource_MISC)
github.com/mermaid-js/mermaid/releases/tag/8.13.8 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-43861?: CVE-2021-43861 is a high-severity vulnerability in Mermaid-js Mermaid, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2021-12-30.
How severe is CVE-2021-43861?: High severity. CVSS v3 base score is 7.2 out of 10.