CVE-2016-9836

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.37%
Third-Party Advisory securityfocus.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/XiphosResearch/exploits/tree/master/Joomraa third party advisory exploit
http://www.securityfocus.com/bid/94663 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2016-9836?
CVE-2016-9836 has been scored as a critical severity vulnerability.
How to fix CVE-2016-9836?
To fix CVE-2016-9836, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9836 being actively exploited in the wild?
It is possible that CVE-2016-9836 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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