PT-2021-23984 · Mermaid · Mermaid

Knsv · Published 2021-12-30 · Updated 2023-07-21 · CVE-2021-43861

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Mermaid versions prior to 8.13.8

Description: 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.

Recommendations: For versions prior to 8.13.8, upgrade to version 8.13.8 to receive a patch. At the moment, there is no other information about additional mitigation measures aside from upgrading to the patched version.

Fix

RCE

XSS

Weakness Enumeration

CWE-20

CWE-79

Related Identifiers

CVE-2021-43861

GHSA-P3RP-VMJ9-GV6V

Affected Products

Mermaid

References · 13

• https://github.com/mermaid-js/mermaid/commit/066b7a0d0bda274d94a2f2d21e4323dab5776d83 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-43861 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-p3rp-vmj9-gv6v · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-43861 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-43861 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-43861 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-43861 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-43861 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-43861 · Vendor Advisory
• https://github.com/mermaid-js/mermaid · Note
• https://github.com/mermaid-js/mermaid/releases/tag/8.13.8 · Note
• https://github.com/mermaid-js/mermaid/security/advisories/GHSA-p3rp-vmj9-gv6v · Note
• https://t.me/cibsecurity/34757 · Telegram Post