Vulnerability-Lookup

GHSA-587P-W43Q-4HJX

Vulnerability from github – Published: 2026-05-07 18:30 – Updated: 2026-05-12 16:19

Summary

query-parser-string is vulnerable to Prototype Pollution

Details

NPM package query-parser-string 1.0.0 is vulnerable to Prototype Pollution. The package does not properly sanitize user supplied query parameters and merges them to the newly created object.

Severity ?

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "query-string-parser"
      },
      "versions": [
        "1.0.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-63704"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-12T16:19:25Z",
    "nvd_published_at": "2026-05-07T16:16:17Z",
    "severity": "CRITICAL"
  },
  "details": "NPM package query-parser-string 1.0.0 is vulnerable to Prototype Pollution. The package does not properly sanitize user supplied query parameters and merges them to the newly created object.",
  "id": "GHSA-587p-w43q-4hjx",
  "modified": "2026-05-12T16:19:25Z",
  "published": "2026-05-07T18:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-63704"
    },
    {
      "type": "WEB",
      "url": "https://github.com/victorteokw/query-string-parser/issues/3"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/6en6ar/d62f614dbb2b1032b5e45a56fe26ec8b"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/victorteokw/query-string-parser"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/query-string-parser?activeTab=readme"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "query-parser-string is vulnerable to Prototype Pollution"
}

CVE-2025-63704 (GCVE-0-2025-63704)

Vulnerability from cvelistv5 – Published: 2026-05-07 00:00 – Updated: 2026-05-08 21:30

Summary

NPM package query-parser-string 1.0.0 is vulnerable to Prototype Pollution. The package does not properly sanitize user supplied query parameters and merges them to the newly created object.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

Assigner

mitre

References

3 references

URL	Tags
https://www.npmjs.com/package/query-string-parser…
https://github.com/victorteokw/query-string-parse…
https://gist.github.com/6en6ar/d62f614dbb2b1032b5…

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-63704",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-08T16:32:17.656177Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-1321",
                "description": "CWE-1321 Improperly Controlled Modification of Object Prototype Attributes (\u0027Prototype Pollution\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-08T21:30:45.836Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "NPM package query-parser-string 1.0.0 is vulnerable to Prototype Pollution. The package does not properly sanitize user supplied query parameters and merges them to the newly created object."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-07T15:29:31.797Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://www.npmjs.com/package/query-string-parser?activeTab=readme"
        },
        {
          "url": "https://github.com/victorteokw/query-string-parser/issues/3"
        },
        {
          "url": "https://gist.github.com/6en6ar/d62f614dbb2b1032b5e45a56fe26ec8b"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2025-63704",
    "datePublished": "2026-05-07T00:00:00.000Z",
    "dateReserved": "2025-10-27T00:00:00.000Z",
    "dateUpdated": "2026-05-08T21:30:45.836Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-587P-W43Q-4HJX

CVE-2025-63704 (GCVE-0-2025-63704)

Tags

Sightings

Nomenclature