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CVE-2016-8869
The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4 allows…
Critical9.8EPSS 97.3%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 97.3% · top 0.1% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (8)
- https://developer.joomla.org/security-centre/660-20161002-core-elevated-privileges.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 93883 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html (opens in a new tab)x_refsource_MISCx_transferred
- http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privesc (opens in a new tab)x_refsource_MISCx_transferred
- 40637 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 1037108 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://medium.com/%40showthread/joomla-3-6-4-account-creation-elevated-privileges-write-up-and-exploit-965d8fb46fa2#.rq4qh1v4r (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .