Vulnerabilities in pkg:npm/csvjson

PACKAGE
Advisory Identifier: GHSA-xq4f-3jxp-qv6m
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Advisory Summary

CVE-2025-57318 is a HIGH (CVSS 7.5) csvjson vulnerable to prototype injection vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Csvjson libraries in the npm ecosystem. The issue involves csvjson vulnerable to prototype injection. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/csvjson

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/csvjson. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-xq4f-3jxp-qv6m CVE-2025-57318 HIGH csvjson vulnerable to prototype injection

CVE-2025-57318 at a Glance

CVE Identifier CVE-2025-57318
GHSA Identifier GHSA-xq4f-3jxp-qv6m
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Csvjson
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2025-57318

To remediate this vulnerability, upgrade all affected Csvjson dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

csvjson fixed: Latest secure release 
npm install csvjson@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls csvjson

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-57318, inspect your project dependencies using npm:

npm ls csvjson

Analyze the terminal output to locate any version of Csvjson in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls csvjson command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), where the product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. In Csvjson, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A Prototype Pollution vulnerability in the toCsv function of csvjson versions thru 5.1.0 allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

CVE-2025-57318 Affected Csvjson Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
csvjson
npm/csvjson
npm
≤ 5.1.0

References

NVD — CVE-2025-57318 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-57318
Csvjson Source Repository REPOSITORY
https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/csvjson%405.1.0/index.js
Csvjson Source Repository REPOSITORY
https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57318
Csvjson Source Repository REPOSITORY
https://github.com/pradeep-mishra/csvjson

Frequently Asked Questions

What is CVE-2025-57318?
CVE-2025-57318 is a security vulnerability in Csvjson involving csvjson vulnerable to prototype injection under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Csvjson versions are affected?
Affected versions include releases prior to current release patches across affected packages: csvjson.
What version fixes CVE-2025-57318?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is csvjson affected?
Yes, csvjson is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2025-57318?
CVE-2025-57318 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2025-57318?
CVE-2025-57318 is classified under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.).
How can I check npm dependencies for CVE-2025-57318?
Run the dependency tree command: 'npm ls csvjson'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xq4f-3jxp-qv6m",
  "modified" : "2025-09-26T12:56:24Z",
  "published" : "2025-09-24T21:30:37Z",
  "aliases" : [ "CVE-2025-57318" ],
  "summary" : "csvjson vulnerable to prototype injection",
  "details" : "A Prototype Pollution vulnerability in the toCsv function of csvjson versions thru 5.1.0 allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "csvjson"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "5.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-57318"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/VulnSageAgent/PoCs/blob/main/JavaScript/prototype-pollution/csvjson%405.1.0/index.js"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025-57318"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pradeep-mishra/csvjson"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-26T12:56:24Z",
    "nvd_published_at" : "2025-09-24T21:15:31Z"
  }
}