Cross-Site Scripting in htmr

Description

Versions of htmr prior to 0.8.7 are vulnerable to Cross-Site Scripting (XSS). The package uses innerHTML to unescape HTML entities. This may lead to DOM-based XSS through HTML-encoded XSS payloads. This may allow an attacker to execute arbitrary JavaScript in a victim’s browser.

Recommendation

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

• Affected version(s): < 0.8.7
• Patched version(s): 0.8.7

References

• GHSA-f8rq-m28h-8hxj
• hackerone.com
• www.npmjs.com
• CWE-79
• OWASP 2021-A3

Related Issues

• Vditor Cross-site Scripting vulnerability - CVE-2021-32855
• Bootstrap Cross-Site Scripting (XSS) vulnerability - CVE-2024-6531
• @dependencytrack/frontend vulnerable to Persistent Cross-Site-Scripting via Vulnerability Details - CVE-2022-39350
• CKEditor 5 cross-site scripting (XSS) vulnerability in the clipboard package - CVE-2025-58064

Tags:

npm

htmr