CVE-2016-8869 EXPLOIT
9.8
CRITICAL · CVSS 3.0 · EPSS 97.3% (pctl 100)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 97.25% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-20 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2016-11-04 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| joomla | joomla\! |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Joomla! 3.4.4 < 3.6.4 - Account Creation / Privilege Escalation | 2016-10-27 |
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
- https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf
- https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r
- https://www.exploit-db.com/exploits/40637/
- 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
- https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf
- https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r
- https://www.exploit-db.com/exploits/40637/
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