SB2025121629 - Universal XSS in Happy DOM
Published: December 16, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Universal cross-site scripting (CVE-ID: CVE-2024-51757)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install update from vendor's website.
References
- https://github.com/capricorn86/happy-dom/commit/5ee0b1676d4ce20cc2a70d1c9c8d6f1e3f57efac
- https://github.com/capricorn86/happy-dom/commit/d23834c232f1cf5519c9418b073f1dcec6b2f0fd
- https://github.com/capricorn86/happy-dom/issues/1585
- https://github.com/capricorn86/happy-dom/pull/1586
- https://github.com/capricorn86/happy-dom/releases/tag/v15.10.2
- https://github.com/capricorn86/happy-dom/security/advisories/GHSA-96g7-g7g9-jxw8