SB2019052405 - CSV injection in Hustle WordPress plugin
Published: May 24, 2019 Updated: June 13, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Code injection (CVE-ID: CVE-2019-11872)
The disclosed vulnerability allows a remote attacker to inject arbitrary code into CSV files.
The vulnerability exists due to insufficient sanitization of user-supplied data when constructing CSV files. A remote non-authenticated attacker 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 allow a remote attacker to execute arbitrary code on the system but requires that the administrator performs malicious data export into CSV format and opens it with an application that will execute the injected code.
Remediation
Install update from vendor's website.