GitHub Advisoryadvisory · npm

GHSA-m4gq-x24j-jpmf Prototype pollution vulnerability found in Mermaid's bundled version of DOMPurify

HIGH Published 2024-10-22 Modified 2024-10-23 Official page ↗
Ecosystem
npm
Packages
mermaid
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
Weaknesses
CWE-1321, CWE-1395
Reviewed
2024-10-22

Affected packages

• npm mermaid: < 10.9.3 → fixed in 10.9.3

Description

The following bundled files within the Mermaid NPM package contain a bundled version of DOMPurify that is vulnerable to https://github.com/cure53/DOMPurify/security/advisories/GHSA-mmhx-hmjr-r674, potentially resulting in an XSS attack. This affects the built: • `dist/mermaid.min.js` • `dist/mermaid.js` • `dist/mermaid.esm.mjs` • `dist/mermaid.esm.min.mjs` This will also affect users that use the above files via a CDN link, e.g. `https://cdn.jsdelivr.net/npm/[email protected]/dist/mermaid.min.js` Users that use the default NPM export of `mermaid`, e.g. `import mermaid from 'mermaid'`, or the `dist/mermaid.core.mjs` file, do not use this bundled version of DOMPurify, and can easily update using their package manager with something like `npm audit fix`. Patches • `develop` branch: 6c785c93166c151d27d328ddf68a13d9d65adc00 • backport to v10: 92a07ffe40aab2769dd1c3431b4eb5beac282b34

Related

Weakness · CWE (2)

  • CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness
  • CWE-1395 Dependency on Vulnerable Third-Party Component weakness

References