Vulnerability Description
The csvtojson package, a tool for converting CSV data to JSON with customizable parsing capabilities, contains a prototype pollution vulnerability in versions prior to 2.0.10. This issue arises due to insufficient sanitization of nested header names during the parsing process in the parser_jsonarray component. When processing CSV input containing specially crafted header fields that reference prototype chains (e.g., using __proto__ syntax), the application may unintentionally modify properties of the base Object prototype. This vulnerability can lead to denial of service conditions or unexpected behavior in applications relying on unmodified prototype chains, particularly when untrusted CSV data is processed. The flaw does not require user interaction beyond providing a maliciously constructed CSV file.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Keyangxiang | Csvtojson | < 2.0.10 |
Related Weaknesses (CWE)
References
- https://github.com/Keyang/node-csvtojson/issues/498Issue TrackingVendor Advisory
- https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CThird Party Advisory
FAQ
What is CVE-2025-57350?
CVE-2025-57350 is a vulnerability with a CVSS score of 8.6 (HIGH). The csvtojson package, a tool for converting CSV data to JSON with customizable parsing capabilities, contains a prototype pollution vulnerability in versions prior to 2.0.10. This issue arises due to...
How severe is CVE-2025-57350?
CVE-2025-57350 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-57350?
Check the references section above for vendor advisories and patch information. Affected products include: Keyangxiang Csvtojson.