๐Ÿ›ก๏ธ CVE-2025-62410
๐Ÿ”ด CVSS 9.5 โ€” Critical โœ… No Known Exploit CWE-1321 NVD
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In versions before 20.0.2, it was found that --disallow-code-generation-from-strings is not sufficient for isolating untrusted JavaScript in happy-dom. The untrusted script and the rest of the application still run in the same Isolate/process, so attackers can deploy prototype pollution payloads to hijack important references like "process" in the example below, or to hijack control flow via flipping checks of undefined property. This vulnerability is due to an incomplete fix for CVE-2025-61927. The vulnerability is fixed in 20.0.2.

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE CWE-1321
Public Exploit โœ… No
Source NVD
Published 2025-10-15
Updated 2026-06-02
Modified 2025-11-27
Fix URL N/A

Affected Packages

Software From version Fixed in
happy-dom โ€” โ€”
unknown โ€” โ€”

Similar Threats

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