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CVE-2023-0842

Status: ModifiedMedium (5.3)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Xml2js Project — Xml2js

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-0842",
  "cveTags": [],
  "metrics": {
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          "options": [
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              "exploitation": "poc"
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              "automatable": "yes"
            },
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          ],
          "version": "2.0.3",
          "timestamp": "2025-02-13T19:12:29.183636Z"
        }
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    {
      "url": "https://github.com/Leonidas-from-XIV/node-xml2js/releases/tag/0.6.2",
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  "vulnStatus": "Modified",
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    }
  ],
  "lastModified": "2026-06-17T05:26:26.057",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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}