Fortinet Discovers WordPress WPForms Lite Plugin Cross-Site Scripting Vulnerability
Fortinet's FortiGuard Labs has discovered a cross-site scripting (XSS) vulnerability in WordPress WP Forms Lite plugin.
WPForms is a popular WordPress plugin with over 3+ million installations. WPForms allows you to create beautiful contact forms, feedback forms, subscription forms, payment forms, and other types of forms for your site in minutes.
A stored cross-site scripting vulnerability exists in WP Forms plugin (version 18.104.22.168 & below). The vulnerability is caused by improper input sanitization of user input in the choice label parameter inside the form builder that interacts with live preview.
SolutionsFortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:
Released May 08, 2020
Upgrade to the latest version - WPForms Lite v22.214.171.124 or above.
Fortinet reported the vulnerability to WpForms on May 02, 2020
WPForms confirmed the vulnerability on May 04, 2020
WPForms fixed the vulnerability on May 21, 2020