Vulnerability Details : CVE-2016-9838
An issue was discovered in components/com_users/models/registration.php in Joomla! before 3.6.5. Incorrect filtering of registration form data stored to the session on a validation error enables a user to gain access to a registered user's account and reset the user's group mappings, username, and password, as demonstrated by submitting a form that targets the `registration.register` task.
Vulnerability category: BypassGain privilege
Exploit prediction scoring system (EPSS) score for CVE-2016-9838
Probability of exploitation activity in the next 30 days: 1.15%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 83 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-9838
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2016-9838
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-9838
-
https://www.joomla.org/announcements/release-news/5693-joomla-3-6-5-released.html
Joomla! 3.6.5 ReleasedPatch;Vendor Advisory
-
http://www.securityfocus.com/bid/94893
Joomla! Core CVE-2016-9838 Remote Privilege Escalation VulnerabilityThird Party Advisory;VDB Entry
-
https://www.exploit-db.com/exploits/41157/
Joomla! < 3.6.4 - Admin Takeover
Products affected by CVE-2016-9838
- cpe:2.3:a:joomla:joomla\!:*:*:*:*:*:*:*:*