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CVE-2016-8869

CRITICAL
Published
Nov 4, 2016
Updated
Apr 10, 2026
Affected
0 pkgs
Patched
None yet
Exploits
8 known

EPSS Exploitation Probability

via FIRST.org ↗
92.0%probability of exploitation in next 30 days
Very High Risk100th percentile0.00%
91.4%92.3%93.1%93.9%92.7%92.0%Dec 25Apr 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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.

Exploits & PoCs
8

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-40637webappsphp

Joomla! 3.4.4 < 3.6.4 - Account Creation / Privilege Escalation

by Xiphos Research Ltd · Oct 27, 2016

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

Is CVE-2016-8869 in your stack?

O3 detects CVE-2016-8869 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.