PT-2021-4262 · Mermaid · Mermaid

Knsv · Published 2021-06-27 · Updated 2021-12-10 · CVE-2021-35513

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Mermaid versions prior to 8.11.0

Description The issue is related to the antiscript feature in Mermaid, which allows for cross-site scripting (XSS) attacks. This can potentially impact the integrity of data. The vulnerability can be exploited by a remote attacker.

Recommendations For versions prior to 8.11.0, update to version 8.11.0 or later to resolve the issue. As a temporary workaround, consider disabling the antiscript feature until a patch is available.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2021-04870

CVE-2021-35513

GHSA-4F6X-49G2-99FM

Affected Products

Mermaid

References · 15

• https://github.com/mermaid-js/mermaid/pull/2123 · Patch
• https://bdu.fstec.ru/vul/2021-04870 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-35513 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-35513 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-35513 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-35513 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-35513 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-4f6x-49g2-99fm · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-35513 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-35513 · Security Note
• https://github.com/mermaid-js/mermaid/issues/2122 · Note
• https://github.com/mermaid-js/mermaid/releases/tag/8.11.0-rc2 · Note
• https://github.com/mermaid-js/mermaid/pull/2123/commits/3d22fa5d2435de5acc18de6f88474a6e8675a60e · Note
• https://t.me/cvenotify/16747 · Telegram Post
• https://t.me/cibsecurity/25727 · Telegram Post