Incorrect sanitisation function leads to `XSS` in mermaid

Description

Malicious diagrams can contain javascript code that can be run at diagram readers machines.

Recommendation

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

• Affected version(s): < 8.13.8
• Patched version(s): 8.13.8

References

• GHSA-p3rp-vmj9-gv6v
• CVE-2021-43861
• CWE-20
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• cumulative-distribution-function Infinite Loop vulnerability - CVE-2021-29486
• Astro's bypass of image proxy domain validation leads to SSRF and potential XSS - CVE-2025-59837
• Reflected XSS from the callback handler's error query parameter - CVE-2021-32702
• Reflected XSS when using flashMessages or languageDictionary - CVE-2021-32641

Tags:

npm

mermaid