Vulnerability identifier: #VU5851

Vulnerability risk: Critical

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WP Mobile detector
Web applications / Modules and components for CMS

Vendor: WordPress.ORG

Description
The vulnerability allows a remote attacker to upload arbitrary files to compromise the target system.

The weakness exists due to the failure to validate and sanitize input. A remote attacker can send a request toresize.php or timthumb.php inside the plugin directory with the backdoor URL that contains a PHP code.

Successful exploitation of the vulnerability may result in malicious files uploading and vulnerable system compromising.

Note: the vulnerability was being actively exploited.

Mitigation
Update to version 3.7.

Vulnerable software versions

WP Mobile detector: 3.6 - 3.7

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External links
http://www.pluginvulnerabilities.com/2016/05/31/aribitrary-file-upload-vulnerability-in-wp-mobile-d...

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.