{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.2.8"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "706a538655425cf27bcb2b0f677bb568cc069dff"
            }
          ],
          "repo": "https://github.com/verbb/knock-knock",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "The Knock Knock plugin before 1.2.8 for Craft CMS allows IP Whitelist bypass via an X-Forwarded-For HTTP header.",
  "id": "CVE-2020-13485",
  "modified": "2026-03-13T21:48:46.580820041Z",
  "published": "2020-05-25T23:15:09.643Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/verbb/knock-knock/blob/craft-3/CHANGELOG.md"
    },
    {
      "type": "EVIDENCE",
      "url": "https://limpidsecurity.pl/security-advisories/1/knock-knock-plugin-for-craft-cms/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}