{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "2.5.0"
              },
              {
                "fixed": "3.9.17"
              }
            ]
          },
          "events": [
            {
              "introduced": "d53146a31d303a10b8cc4fa78a6fb16770ae50e7"
            },
            {
              "fixed": "7b010b41500bc916273ea82c0ba58bd57a1fe4ce"
            }
          ],
          "repo": "https://github.com/joomla/joomla-cms",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "An issue was discovered in Joomla! before 3.9.17. Incorrect ACL checks in the access level section of com_users allow the unauthorized deletion of usergroups.",
  "id": "CVE-2020-11889",
  "modified": "2026-03-13T21:55:48.558842098Z",
  "published": "2020-04-21T17:15:12.350Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://developer.joomla.org/security-centre/811-20200403-core-incorrect-access-control-in-com-users-access-level-deletion-function"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}