PB SEO Friendly Images <= 4.0.5 is vulnerable to Cross Site Scripting (XSS)

The PB SEO Friendly Images plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's settings in versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers with administrator-level access, and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.