Malicious Package in json-serializer
Version 2.0.10 of json-serializer contained malicious code. The code when executed in the browser would enumerate password, cvc, cardnumber fields from forms and send the extracted values to https://js-metrics.com/minjs.php?pl=
Recommendation
Remove the package from your environment and evaluate your application to determine whether or not user data was compromised.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | json-serializer | >= 2.0.10, < 2.0.11 | 2.0.11 |
References
- Weakness (CWE)
-- Platform
- npm
- Package
json-serializer- Disclosed
- 03.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-chh2-rvhg-wqwr - CC BY 4.0
Vulnerability history: json-serializer
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 09.2020 09.2020
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
Disclosures per year
- 2020: 2
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Malicious Package in json-serializer this entry
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