The Strong Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Testimonial Custom Fields in all versions up to, and including, 3.2.11 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The Strong Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's testimonialview shortcode in all versions up to, and including, 3.2.21 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 Strong Testimonials WordPress plugin before 3.1.12 does not validate and escape some of its Testimonial fields before outputting them back in a page/post, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks. The attack requires a specific view to be performed

The Strong Testimonials plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 3.2.16. This is due to the software allowing users to submit a testimonial in which a value is not properly validated or sanitized prior to being passed to a doshortcode call. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes if an administrator previews or publishes a crafted testimonial.