CVE-2016-9836

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 v3.0

9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

1.88% chance of exploitation in the next 30 days, 78th percentile

Published

2016-12-05

Updated

2024-08-06

Proof-of-concept exploits (1)

• XiphosResearch/exploits/tree/master/Joomraa

References

• CVE Record
• NVD entry

Related

• CVE-2015-5947
• CVE-2015-5948
• CVE-2016-9834
• CVE-2016-9838
• CVE-2016-9832
• CVE-2016-9892