Cross-site Scripting in Mermaid

Description

Mermaid before 8.11.0 allows XSS when the antiscript feature is used.

Recommendation

Update the mermaid package to the latest compatible version. Followings are version details:

• Affected version(s): < 8.11.0
• Patched version(s): 8.11.0

References

• GHSA-4f6x-49g2-99fm
• CVE-2021-35513
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Mermaid improperly sanitizes sequence diagram labels leading to XSS - CVE-2025-54881
• Prototype pollution vulnerability found in Mermaid's bundled version of DOMPurify - Vulnerability
• Command Injection Vulnerability - CVE-2021-21315
• Prototype Pollution in vConsole - CVE-2023-30363

Tags:

npm

mermaid