{
  "id": "CVE-2021-3830",
  "sourceIdentifier": "security@huntr.dev",
  "published": "2021-09-26T09:15:09.843",
  "lastModified": "2021-10-01T14:03:04.670",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "btcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"
    },
    {
      "lang": "es",
      "value": "btcpayserver es vulnerable a una Neutralizaci\u00f3n Inapropiada de la Entrada Durante la Generaci\u00f3n de P\u00e1ginas Web (\"Cross-site Scripting\")"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7
      }
    ],
    "cvssMetricV30": [
      {
        "source": "security@huntr.dev",
        "type": "Secondary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 3.8,
          "baseSeverity": "LOW"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 2.5
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "SINGLE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.5
        },
        "baseSeverity": "LOW",
        "exploitabilityScore": 6.8,
        "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"
        }
      ]
    },
    {
      "source": "security@huntr.dev",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:btcpayserver:btcpay_server:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "1.2.3",
              "matchCriteriaId": "3501CC28-53A0-49E2-86DB-05B5AB41747F"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/btcpayserver/btcpayserver/commit/fc4e47cec608cc3dba24b19d0145ac69320b975e",
      "source": "security@huntr.dev",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://huntr.dev/bounties/0fcdee5f-1f07-47ce-b650-ea8b4a7d35d8",
      "source": "security@huntr.dev",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ]
    }
  ]
}