CVEvulnerability

CVE-2016-9836

9.8 CRITICAL Published 2016-12-05 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2016-12-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-284

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.

Affected configurations

• joomla joomla\! (<= 3.6.4)

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References