Vulnerability in Joomla Joomla\!
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.141 (96.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.141 · newest: 0.141 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.joomla.org/announcements/release-news/5693-joomla-3-6-5-released.html (Patch, Vendor Advisory)
- www.exploit-db.com/exploits/41157/ (exploit)
- www.securityfocus.com/bid/94893 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2016-9838?
- CVE-2016-9838 is a high-severity vulnerability in Joomla Joomla\!, classified under Improper Access Control. CVSS score: 7.5/10. Published 2016-12-16.
- How severe is CVE-2016-9838?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-9838 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.