Description
BigTree CMS through 4.2.18 allows remote authenticated users to execute arbitrary code by uploading a crafted package containing a PHP web shell, related to extraction of a ZIP archive to filename patterns such as cache/package/xxx/yyy.php. This issue exists in core\admin\modules\developer\extensions\install\unpack.php and core\admin\modules\developer\packages\install\unpack.php. NOTE: the vendor states "You must implicitly trust any package or extension you install as they all have the ability to write PHP files.
References (1)
Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/bigtreecms/BigTree-CMS/issues/291
Scores
CVSS v3
8.8
EPSS
0.0245
EPSS Percentile
82.4%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-94
Status
published
Products (1)
bigtreecms/bigtree_cms
< 4.2.18
Published
Jun 05, 2017
Tracked Since
Feb 18, 2026