CVE-2016-8870

moderate-risk

Published 2016-11-04

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.

Do I need to act?

91.5% chance of exploitation in next 30 days

EPSS score — higher than 8% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

1 public exploit available

40637

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.1/10 High

NETWORK / HIGH complexity

Affected Products (1)

Joomla\!

Affected Vendors

Joomla

References (18)

Third Party Advisory http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_prives...

Third Party Advisory http://www.securityfocus.com/bid/93876

http://www.securitytracker.com/id/1037107

Third Party Advisory http://www.securitytracker.com/id/1037108

https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerabilit...

Vendor Advisory https://developer.joomla.org/security-centre/659-20161001-core-account-creation....

Patch https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538...

https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileg...

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