{
  "id": "CVE-2021-3377",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-03-05T21:15:13.263",
  "lastModified": "2021-03-09T15:46:50.940",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The npm package ansi_up converts ANSI escape codes into HTML. In ansi_up v4, ANSI escape codes can be used to create HTML hyperlinks. Due to insufficient URL sanitization, this feature is affected by a cross-site scripting (XSS) vulnerability. This issue is fixed in v5.0.0."
    },
    {
      "lang": "es",
      "value": "El paquete npm ansi_up convierte los c\u00f3digos de escape ANSI en HTML. En ansi_up versi\u00f3n v4, los c\u00f3digos de escape ANSI pueden ser usados para crear hiperv\u00ednculos HTML. Debido a un saneamiento insuficiente de la URL, esta funcionalidad est\u00e1 afectada por una vulnerabilidad de tipo cross-site scripting (XSS). Este problema es corregido en versi\u00f3n v5.0.0"
    }
  ],
  "metrics": {
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      {
        "source": "nvd@nist.gov",
        "type": "Primary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
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          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.3
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ansi_up_project:ansi_up:*:*:*:*:*:node.js:*:*",
              "versionEndExcluding": "5.0.0",
              "matchCriteriaId": "72350660-79B9-4D4C-8F06-70A88AE1C3AC"
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  "references": [
    {
      "url": "https://doyensec.com/resources/Doyensec_Advisory_ansi_up4_XSS.pdf",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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    },
    {
      "url": "https://github.com/drudru/ansi_up/commit/c8c726ed1db979bae4f257b7fa41775155ba2e27",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
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    }
  ]
}