Malicious Package in json-serializer
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- Code execution
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-506.
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 If version 2.0.10 of this module is found installed you will want to replace it with a version before or after 2.0.10. In addition to replacing the installed module, you will also want to evaluate your application to determine whether or not user data was compromised.
Why it matters now
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-7xfq-xh6v-4mrm |
- json-serializer (npm) Vendor— Affected 2.0.10 to before 2.0.11 Fixed in 2.0.11 Patch available GHSA-7xfq-xh6v-4mrm
Remediation
- Fix · GHSA-7xfq-xh6v-4mrm json-serializer (npm) Fixed in 2.0.11 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-7xfq-xh6v-4mrm
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences