{
  "id": "CVE-2021-3874",
  "sourceIdentifier": "security@huntr.dev",
  "published": "2021-10-15T14:15:07.757",
  "lastModified": "2021-10-20T19:40:39.627",
  "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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        "type": "Primary",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
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          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
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          "baseSeverity": "MEDIUM"
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        "exploitabilityScore": 2.8,
        "impactScore": 1.4
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    ],
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
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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": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
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      ]
    },
    {
      "source": "security@huntr.dev",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
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  "configurations": [
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      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*",
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              "matchCriteriaId": "76DDD7E8-B040-4418-9FAA-B5195976C962"
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  "references": [
    {
      "url": "https://github.com/bookstackapp/bookstack/commit/7224fbcc89f00f2b71644e36bb1b1d96addd1d5a",
      "source": "security@huntr.dev",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://huntr.dev/bounties/ac268a17-72b5-446f-a09a-9945ef58607a",
      "source": "security@huntr.dev",
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        "Exploit",
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}