Code injection in Happy DOM - CVE-2025-61927
Published: December 16, 2025
Vulnerability identifier: #VU120001
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-61927
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: capricorn86
Affected software:
Happy DOM
Happy DOM
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote attacker can trick the victim into visiting a specially crafted website and and execute arbitrary code on the target system in the context of the Node.js VM Context.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2025-61927
Install updates from vendor's website.