Vulnerability identifier: #VU29190

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme
Web applications / Modules and components for CMS

Vendor: King-Theme

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists within the "upload" action due to the affected plugin does not validate the extraction of the extension ZIP file. A remote authenticated attacker can add a "script.php" to a ZIP file and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme: 2.0.0 - 2.9.2

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External links
http://wpvulndb.com/vulnerabilities/10270/
http://blog.nintechnet.com/wordpress-kingcomposer-page-builder-fixed-multiple-critical-vulnerabilities/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.