{
  "id": "CVE-2021-3916",
  "sourceIdentifier": "security@huntr.dev",
  "published": "2021-11-05T15:15:07.890",
  "lastModified": "2021-11-09T15:12:50.740",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "bookstack is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"
    },
    {
      "lang": "es",
      "value": "bookstack es vulnerable a una Limitaci\u00f3n Inapropiada de un Nombre de Ruta a un Directorio Restringido (\"Salto de Ruta\")"
    }
  ],
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          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
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        "exploitabilityScore": 2.8,
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          "scope": "UNCHANGED",
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          "integrityImpact": "NONE",
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          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security@huntr.dev",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
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  "references": [
    {
      "url": "https://github.com/bookstackapp/bookstack/commit/43830a372fc51a8793199d04a34c3f4ebdfccc7b",
      "source": "security@huntr.dev",
      "tags": [
        "Patch",
        "Third Party Advisory"
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      "url": "https://huntr.dev/bounties/0be32e6b-7c48-43f0-9cec-433000ad8f64",
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}