{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.6.3"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "2e0aaf4d8144ec083aead8703b6e1ab2b978ad75"
            },
            {
              "fixed": "bae1d43938c878480cfd73671e4945211538fdcf"
            }
          ],
          "repo": "https://github.com/joomla/joomla-cms",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4 allows remote attackers to gain privileges by leveraging incorrect use of unfiltered data when registering on a site.",
  "id": "CVE-2016-8869",
  "modified": "2026-04-01T23:08:36.330565018Z",
  "published": "2016-11-04T21:59:07.553Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.securityfocus.com/bid/93883"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.securitytracker.com/id/1037108"
    },
    {
      "type": "ADVISORY",
      "url": "https://developer.joomla.org/security-centre/660-20161002-core-elevated-privileges.html"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privesc"
    },
    {
      "type": "FIX",
      "url": "https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf"
    },
    {
      "type": "EVIDENCE",
      "url": "https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html"
    },
    {
      "type": "EVIDENCE",
      "url": "https://www.exploit-db.com/exploits/40637/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}