CVE-2017-9442

8.8 highEPSS 2.5%

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.

Severity

CVSS 3.0

8.8 high

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

EPSS: 2.5% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-31)
CWE: CWE-94
Published: 2017-06-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

bigtreecms:bigtree_cms

References

https://github.com/bigtreecms/BigTree-CMS/issues/291
https://github.com/bigtreecms/BigTree-CMS/issues/291

Check your stack JSON