{"cve":"CVE-2016-8869","nvd":{"published":"2016-11-04T21:59:07.553","modified":"2026-06-17T00:55:06.530","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-20"],"references":["http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privesc","http://www.securityfocus.com/bid/93883","http://www.securitytracker.com/id/1037108","https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html","https://developer.joomla.org/security-centre/660-20161002-core-elevated-privileges.html"],"products":["joomla:joomla\\!"],"source":"nvd","synced_at":"2026-10-19T20:40:10.783210791+00:00"},"epss":{"cve":"CVE-2016-8869","score":0.97252,"percentile":0.99896,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}