CVE-2017-9442

Name: CVE-2017-9442
Creator: NVD / NIST
Published: 2017-06-05T19:29:00.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.45%

Last modified Jun 17, 2026

CVE-2017-9442 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.45% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.45%

82.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Bigtreecms	Bigtree Cms	<= 4.2.18

References

https://github.com/bigtreecms/BigTree-CMS/issues/291Exploit, Third Party Advisory
https://github.com/bigtreecms/BigTree-CMS/issues/291Exploit, Third Party Advisory

Timeline

Published: Jun 5, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-9442?

How severe is CVE-2017-9442?

Severity scoring for CVE-2017-9442 is pending analysis. The EPSS model estimates a 2.45% probability of exploitation in the next 30 days.

How do I fix CVE-2017-9442?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-9442?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST