Detections
Analytics

CVE-2016-8869

critical

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.

References

http://www.securitytracker.com/id/1037108

http://www.securityfocus.com/bid/93883

https://github.com/rustyJ4ck/JoomlaCVE20168869

https://www.exploit-db.com/exploits/40637/

https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r

https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf

https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-9694

https://developer.joomla.org/security-centre/660-20161002-core-elevated-privileges.html

https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html

Details

Source: Mitre, NVD

Published: 2016-11-04

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.97252