User Registration, Login & Landing Pages <= 1.2.7 - Admin+ Stored Cross-Site Scripting

Description

The plugin is vulnerable to Stored Cross-Site Scripting due to insufficient escaping via the loader_text parameter found in the ~/includes/templates/landing-page.php file which allows attackers with administrative user access to inject arbitrary web scripts. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.