{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:btcpayserver:btcpay_server:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.2.3"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ade11faf943ab017972857ec10a3e0c8dd685f98"
            },
            {
              "fixed": "fc4e47cec608cc3dba24b19d0145ac69320b975e"
            }
          ],
          "repo": "https://github.com/btcpayserver/btcpayserver",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "btcpayserver is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
  "id": "CVE-2021-3646",
  "modified": "2026-07-08T05:37:27.503313609Z",
  "published": "2021-09-10T18:15:22.527Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://github.com/btcpayserver/btcpayserver/commit/fc4e47cec608cc3dba24b19d0145ac69320b975e"
    },
    {
      "type": "EVIDENCE",
      "url": "https://huntr.dev/bounties/32e30ecf-31fa-45f6-8552-47250ef0e613"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}