Code injection in Hustle - Pop-Ups, Slide-ins and Email Opt-ins - CVE-2019-11872
Published: June 10, 2019 / Updated: June 13, 2019
Hustle - Pop-Ups, Slide-ins and Email Opt-ins
Detailed vulnerability description
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.