Critical severity · published Nov 4, 2016
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 remote attackers to gain privileges by…
9.8
CVSS
97.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)97.3% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Joomla · Joomla
through 3.6.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-8869
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-8869
Third Party Advisory
http://www.rapid7.com/db/modules/auxiliary/admin/http/joomla_registration_privesc
Third Party Advisory
http://www.securityfocus.com/bid/93883
Third Party Advisory
http://www.securitytracker.com/id/1037108
Exploit
https://blog.sucuri.net/2016/10/details-on-the-privilege-escalation-vulnerability-in-joomla.html
Vendor Advisory
https://developer.joomla.org/security-centre/660-20161002-core-elevated-privileges.html
Patch
https://github.com/joomla/joomla-cms/commit/bae1d43938c878480cfd73671e4945211538fdcf
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