Malicious Package in json-serializer
Priority LOW 38Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
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.
Why it matters now
Fix Fixed json-serializer (npm): 2.0.11
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | json-serializer (npm) | 2.0.10 to before 2.0.11 | 2.0.11 | Patch available | GHSA-chh2-rvhg-wqwr |
- json-serializer (npm) Vendor— Affected 2.0.10 to before 2.0.11 Fixed in 2.0.11 Patch available GHSA-chh2-rvhg-wqwr
Remediation
- Fix · GHSA-chh2-rvhg-wqwr json-serializer (npm) Fixed in 2.0.11 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-chh2-rvhg-wqwr
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences