{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.3.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "a7c439feea71826e6e43b31fd2ab243e201c6316"
            }
          ],
          "repo": "https://github.com/thingsboard/thingsboard",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "A cross-site scripting (XSS) vulnerability in Rule Engine in ThingsBoard 3.3.1 allows remote attackers (with administrative access) to inject arbitrary JavaScript within the description of a rule node.",
  "id": "CVE-2021-42751",
  "modified": "2026-03-13T21:55:53.608625678Z",
  "published": "2022-08-12T17:15:08.627Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://github.com/thingsboard/thingsboard"
    },
    {
      "type": "EVIDENCE",
      "url": "https://packetstormsecurity.com/files/167999/Thingsboard-3.3.1-Cross-Site-Scripting.html"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}