CVE-2016-9836
CRITICALJoomla! < 3.6.4 - Unauthenticated Arbitrary PHP File Upload via Alternative Extensions
Title source: llmDescription
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.
References (2)
Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/XiphosResearch/exploits/tree/master/Joomraa
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/94663
Scores
CVSS v3
9.8
EPSS
0.0188
EPSS Percentile
76.7%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-284
Status
published
Products (1)
joomla/joomla\!
< 3.6.4
Published
Dec 05, 2016
Tracked Since
Feb 18, 2026