Vulnerability Description
The file scanning mechanism of JFilterInput::isFileSafe() in Joomla! CMS before 3.6.5 does not consider alternative PHP file extensions when checking uploaded files for PHP content, which enables a user to upload and execute files with the `.php6`, `.php7`, `.phtml`, and `.phpt` extensions. Additionally, JHelperMedia::canUpload() did not blacklist these file extensions as uploadable file types.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Joomla | Joomla\! | <= 3.6.4 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/94663Third Party AdvisoryVDB Entry
- https://github.com/XiphosResearch/exploits/tree/master/JoomraaExploitThird Party Advisory
- http://www.securityfocus.com/bid/94663Third Party AdvisoryVDB Entry
- https://github.com/XiphosResearch/exploits/tree/master/JoomraaExploitThird Party Advisory
FAQ
What is CVE-2016-9836?
CVE-2016-9836 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The file scanning mechanism of JFilterInput::isFileSafe() in Joomla! CMS before 3.6.5 does not consider alternative PHP file extensions when checking uploaded files for PHP content, which enables a us...
How severe is CVE-2016-9836?
CVE-2016-9836 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2016-9836?
Check the references section above for vendor advisories and patch information. Affected products include: Joomla Joomla\!.