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CVE-2022-21222

Estado: ModificadaAlta (7.5)—

The package css-what before 2.1.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the usage of insecure regular expression in the re_attr variable of index.js. The exploitation of this vulnerability could be triggered via the parse function.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Css-what Project — Css-what

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2022-21222",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "options": [
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              "exploitation": "poc"
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              "automatable": "yes"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-05-20T16:03:52.139564Z"
        }
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    "cvssMetricV31": [
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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  "published": "2022-09-30T05:15:08.713",
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  "vulnStatus": "Modified",
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          "value": "CWE-1333"
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  "descriptions": [
    {
      "lang": "en",
      "value": "The package css-what before 2.1.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the usage of insecure regular expression in the re_attr variable of index.js. The exploitation of this vulnerability could be triggered via the parse function."
    },
    {
      "lang": "es",
      "value": "El paquete css-what versiones anteriores a 2.1.3, es vulnerable a una Denegación de Servicio por Expresión Regular (ReDoS) debido al uso de una expresión regular no segura en la variable re_attr del archivo index.js. La explotación de esta vulnerabilidad podría desencadenarse por medio de la función parse"
    }
  ],
  "lastModified": "2026-06-17T04:25:46.883",
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}