Vulnerability identifier: #VU8505

Vulnerability risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14723

CWE-ID: CWE-89

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WordPress
Web applications / CMS

Vendor: WordPress.ORG

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in web application database.

The vulnerability exists due to insufficient validation of user-supplied data in $wpdb->prepare(). In certain cases, a remote attacker can execute arbitrary SQL commands in application database.

Successful exploitation of the vulnerability may allow an attacker to gain full access to web application database and compromise the web application.

Mitigation
Update to version 4.8.2.

Vulnerable software versions

WordPress: 4.8 - 4.8.1

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External links
http://wordpress.org/news/2017/09/wordpress-4-8-2-security-and-maintenance-release/

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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.