CVE-2016-9838
An issue was discovered in components/com_users/models/registration.php in Joomla! before 3.6.5.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 14.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 14.10% probability · 97th percentile
- Public exploits
- 1 in Exploit-DB · first 20 January 2017
- CISA KEV
- Not listed
- Weakness
- CWE-284
- Affected
- joomla/joomla\!
- Source
- cve@mitre.org
EPSS moved from 11.6% on 21 September 2026 to 14.1% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/94893Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41157/
- https://www.joomla.org/announcements/release-news/5693-joomla-3-6-5-released.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/94893Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41157/
- https://www.joomla.org/announcements/release-news/5693-joomla-3-6-5-released.htmlPatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.