No patched version available.
Brandon Roldan discovered and reported this Cross Site Scripting (XSS) vulnerability in WordPress Activello Theme. This could allow a malicious actor to inject malicious scripts, such as redirects, advertisements, and other HTML payloads into your website which will be executed when guests visit your site. This vulnerability has not been known to be fixed yet.
Auth. Reflected CrossSite Scripting (XSS) vulnerability
Unauthenticated Function Injection vulnerability