The Simple Amazon Affiliate plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'msg' parameter in all versions up to, and including, 1.0.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
The Domain Replace WordPress plugin through 1.3.8 does not sanitise and escape a parameter before outputting it back in an attribute in an admin page, leading to a Reflected Cross-Site Scripting
The duoFAQ - Responsive, Flat, Simple FAQ WordPess plugin is vulnerable to Reflected Cross-Site Scripting via the msg parameter found in the ~/duogeek/duogeek-panel.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.4.8.
The Simple Image Gallery WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the msg parameter found in the ~/simple-image-gallery.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.6.