CSV Injection in TablePress plugin for WordPress

1) Code Injection

EUVDB-ID: #VU24178

Risk: Medium

CVSSv3.1: 6.1 [CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-20180

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to inject arbitrary code into CSV files.

The vulnerability exists in the "tablepress[data]" parameter due to insufficient sanitization of user-supplied data when constructing CSV files. A remote administrator can inject malicious data into the contact form fields that is used later by the plugin to generate CSV files. Such files can be opened with Microsoft Excel built-in functions and utilize its functionality to execute malicious macros.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TablePress: 1.0 - 1.9.2

External links

http://medium.com/@Pablo0xSantiago/cve-2019-20180-tablepress-version-1-9-2-csv-injection-65309fcc8be8
http://wpvulndb.com/vulnerabilities/10016

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user 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.