Cross-Site Scripting in @toast-ui/editor

Description

Versions of @toast-ui/editor prior to 2.2.0 are vulnerable to Cross-Site Scripting (XSS). There are multiple bypasses to the package’s built-in XSS sanitization. This may allow attackers to execute arbitrary JavaScript on a victim’s browser.

Recommendation

Update the @toast-ui/editor package to the latest compatible version. Followings are version details:

• Affected version(s): < 2.2.0
• Patched version(s): 2.2.0

References

• GHSA-cr56-66mx-293v
• www.npmjs.com
• CWE-79
• OWASP 2021-A3

Related Issues

• Cross-Site Scripting in mavon-editor - Vulnerability
• Froala Editor Cross-site Scripting vulnerability - CVE-2023-41592
• Margox Braft-Editor Cross-site Scripting Vulnerability - CVE-2021-27524
• Astro Cloudflare adapter has Stored Cross-site Scripting vulnerability in /_image endpoint - CVE-2025-65019

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How to Secure your NodeJs Express Javascript Application - part 1

How to Secure your NodeJs Express Javascript Application - part 2

10 Secure Coding Best Practices to Follow in Every Project

Tags:

npm

@toast-ui/editor