{"id":"CVE-2016-8870","aliases":["EUVD-2016-9695","GHSA-f3v8-7jfc-xgvg"],"status":"published","title":"The register method in the UsersModelRegistration class in controllers/user.php in the Users...","description":"The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4, when registration has been disabled, allows remote attackers to create user accounts by leveraging failure to check the Allow User Registration configuration setting.","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.81136,"percentile":0.99637,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20"],"published":"2016-11-04T21:00:00Z","modified":"2026-10-20T10:47:58Z","exploits":[{"source":"exploitdb","id":"EDB-40637","title":"Joomla! 3.4.4 \u003c 3.6.4 - Account Creation / Privilege Escalation","type":"webapps","platform":"php","date":"2016-10-27","url":"https://www.exploit-db.com/exploits/40637"},{"source":"metasploit","id":"auxiliary/admin/http/joomla_registration_privesc","title":"Joomla Account Creation and Privilege Escalation","type":"auxiliary","date":"2016-10-25","verified":true,"url":"https://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privesc"},{"source":"pocgithub","id":"cved-sources/cve-2016-8870","title":"cved-sources/cve-2016-8870","date":"2019-01-11","url":"https://github.com/cved-sources/cve-2016-8870"}],"products":[{"vendor":"joomla","product":"joomla\\!"}],"references":[{"url":"http://www.securityfocus.com/bid/93876","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html","tags":["x_refsource_MISC","x_transferred","article"]},{"url":"https://developer.joomla.org/security-centre/659-20161001-core-account-creation.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privesc","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://www.exploit-db.com/exploits/40637/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"http://www.securitytracker.com/id/1037108","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"http://www.securitytracker.com/id/1037107","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-8870"},{"url":"https://medium.com/@showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r"},{"url":"https://www.exploit-db.com/exploits/40637"},{"url":"https://github.com/advisories/GHSA-f3v8-7jfc-xgvg"}],"sources":{"cve":[{"id":"CVE-2016-8870","description":"The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4, when registration has been disabled, allows remote attackers to create user accounts by leveraging failure to check the Allow User Registration configuration setting.","status":"published","published":"2016-11-04T21:00:00Z","modified":"2024-08-06T02:35:01.133Z","updated_at":"2026-11-02T14:33:32.415289Z"}],"euvd":[{"id":"EUVD-2016-9695","description":"The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4, when registration has been disabled, allows remote attackers to create user accounts by leveraging failure to check the Allow User Registration configuration setting.","status":"published","published":"2016-11-04T21:00:00Z","modified":"2024-08-06T02:35:01Z","updated_at":"2026-11-03T02:22:29.188942Z"}],"ghsa":[{"id":"GHSA-f3v8-7jfc-xgvg","title":"The register method in the UsersModelRegistration class in controllers/user.php in the Users...","description":"The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! 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before 3.6.4, when registration has been disabled, allows remote attackers to create user accounts by leveraging failure to check the Allow User Registration configuration setting.","status":"published","published":"2016-11-04T21:59:08.677Z","modified":"2026-10-20T10:47:58.764852073Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:03.171316Z"}]}}