github - ghsa-776f-qx25-q3cc

GHSA-776F-QX25-Q3CC

Vulnerability from github – Published: 2023-04-05 21:30 – Updated: 2025-02-13 22:08

Summary

xml2js is vulnerable to prototype pollution

Details

xml2js versions before 0.5.0 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited.

Severity ?

5.3 (Medium)


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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "xml2js"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-0842"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-04-07T21:00:54Z",
    "nvd_published_at": "2023-04-05T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "xml2js versions before 0.5.0 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the `__proto__` property to be edited.",
  "id": "GHSA-776f-qx25-q3cc",
  "modified": "2025-02-13T22:08:55Z",
  "published": "2023-04-05T21:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0842"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Leonidas-from-XIV/node-xml2js/issues/663"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Leonidas-from-XIV/node-xml2js/pull/603/commits/581b19a62d88f8a3c068b5a45f4542c2d6a495a5"
    },
    {
      "type": "WEB",
      "url": "https://fluidattacks.com/advisories/myers"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Leonidas-from-XIV/node-xml2js"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00013.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "xml2js is vulnerable to prototype pollution"
}

CVE-2023-0842 (GCVE-0-2023-0842)

Vulnerability from cvelistv5 – Published: 2023-04-05 00:00 – Updated: 2025-12-03 20:14

Title

xml2js 0.4.23 - Prototype Pollution

Summary

xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited.

Severity ?

5.3 (Medium)


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

CWE

Prototype Pollution

Assigner

Fluid Attacks

References

URL

Tags

	https://fluidattacks.com/advisories/myers/	third-party-advisory
	https://github.com/Leonidas-from-XIV/node-xml2js/	product
	https://lists.debian.org/debian-lts-announce/2024…	mailing-list
	https://github.com/Leonidas-from-XIV/node-xml2js/…	patch

Impacted products

	Vendor	Product	Version
	n/a	xml2js	Affected: 0.4.23

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T05:24:34.583Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://fluidattacks.com/advisories/myers/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/Leonidas-from-XIV/node-xml2js/"
          },
          {
            "name": "[debian-lts-announce] 20240314 [SECURITY] [DLA 3760-1] node-xml2js security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00013.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-0842",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-13T19:12:29.183636Z",
                "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": "2025-02-13T19:13:03.902Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://registry.npmjs.org",
          "defaultStatus": "unaffected",
          "packageName": "node-xml2js",
          "product": "xml2js",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "0.4.23"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003exml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited.\u003c/p\u003e"
            }
          ],
          "value": "xml2js version 0.4.23 allows an external attacker to edit or add new properties to an object. This is possible because the application does not properly validate incoming JSON keys, thus allowing the __proto__ property to be edited."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Prototype Pollution",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-03T20:14:55.512Z",
        "orgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
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      },
      "references": [
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          "url": "https://fluidattacks.com/advisories/myers/"
        },
        {
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          ],
          "url": "https://github.com/Leonidas-from-XIV/node-xml2js/"
        },
        {
          "name": "[debian-lts-announce] 20240314 [SECURITY] [DLA 3760-1] node-xml2js security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00013.html"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/Leonidas-from-XIV/node-xml2js/releases/tag/0.6.2"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "xml2js 0.4.23 - Prototype Pollution",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "84fe0718-d6bb-4716-a7e8-81a6d1daa869",
    "assignerShortName": "Fluid Attacks",
    "cveId": "CVE-2023-0842",
    "datePublished": "2023-04-05T00:00:00.000Z",
    "dateReserved": "2023-02-15T00:00:00.000Z",
    "dateUpdated": "2025-12-03T20:14:55.512Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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-776F-QX25-Q3CC

CVE-2023-0842 (GCVE-0-2023-0842)

Tags

Sightings

Nomenclature