Multiple plugins for WordPress are vulnerable to Stored Cross-Site Scripting via the plugin's bundled FancyBox JavaScript library (versions 1.3.4 to 3.5.7) in various versions due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Visual Form Builder WordPress plugin before 3.0.7 does not sanitise and escape the form's 'Email to' field , which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

The Visual Form Builder WordPress plugin before 3.0.8 is vulnerable to CSV injection allowing a user with low level or no privileges to inject a command that will be included in the exported CSV file, leading to possible code execution.

The Visual Form Builder WordPress plugin before 3.0.8 does not enforce nonce checks which could allow attackers to make a logged in admin or editor delete and restore arbitrary form entries via CSRF attacks

The Visual Form Builder WordPress plugin before 3.0.6 does not perform access control on entry form export, allowing unauthenticated users to see the form entries or export it as a CSV File using the vfb-export endpoint.

The Visual Form Builder WordPress plugin before 3.0.4 does not sanitise or escape its Form Name, allowing high privilege users such as admin to set Cross-Site Scripting payload in them, even when the unfiltered_html capability is disallowed