FKIE_CVE-2022-21222

Vulnerability from fkie_nvd - Published: 2022-09-30 05:15 - Updated: 2026-06-17 04:25
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
report@snyk.iohttps://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12Broken Link, Third Party Advisory
report@snyk.iohttps://lists.debian.org/debian-lts-announce/2023/03/msg00001.html
report@snyk.iohttps://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12Broken Link, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html
af854a3a-2127-422b-91ae-364da2661108https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488Exploit, Third Party Advisory
Impacted products
Vendor Product Version
css-what_project css-what *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "css-what",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "2.1.3",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "report@snyk.io"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:css-what_project:css-what:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "004658D4-A63D-4954-A507-A80F9C07B13D",
              "versionEndExcluding": "2.1.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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 Denegaci\u00f3n de Servicio por Expresi\u00f3n Regular (ReDoS) debido al uso de una expresi\u00f3n regular no segura en la variable re_attr del archivo index.js. La explotaci\u00f3n de esta vulnerabilidad podr\u00eda desencadenarse por medio de la funci\u00f3n parse"
    }
  ],
  "id": "CVE-2022-21222",
  "lastModified": "2026-06-17T04:25:46.883",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "report@snyk.io",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-21222",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-20T16:03:52.139564Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2022-09-30T05:15:08.713",
  "references": [
    {
      "source": "report@snyk.io",
      "tags": [
        "Broken Link",
        "Third Party Advisory"
      ],
      "url": "https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12"
    },
    {
      "source": "report@snyk.io",
      "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html"
    },
    {
      "source": "report@snyk.io",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Third Party Advisory"
      ],
      "url": "https://github.com/fb55/css-what/blob/a38effd5a8f5506d75c7f8f13cbd8c76248a3860/index.js%23L12"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00001.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://security.snyk.io/vuln/SNYK-JS-CSSWHAT-3035488"
    }
  ],
  "sourceIdentifier": "report@snyk.io",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1333"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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