SEO Friendly Images <= 3.0.4 - Cross-Site Request Forgery to Cross-Site Scripting

The SEO Friendly Images plugin for WordPress is vulnerable to Cross-Site Request Forgery to Cross-Site Scripting in versions up to, and including, 3.0.4 due to insufficient input sanitization and output escaping on the default_alt and default_title parameters along with a missing nonce check on the handle_settings() function. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute in a victim's browser granted they can trick a site administrator into performing an action such as clicking on a link.