Multiple cross-site scripting (XSS) vulnerabilities in the HMS Testimonials plugin before 2.0.11 for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) name, (2) image, (3) url, or (4) testimonial parameter to the Testimonial form (hms-testimonials-addnew page); (5) date_format parameter to the Settings - Default form (hms-testimonials-settings page); (6) name parameter in a Save action to the Settings - Custom Fields form (hms-testimonials-settings-fields page); or (7) name parameter in a Save action to the Settings - Template form (hms-testimonials-templates-new page).

Multiple cross-site request forgery (CSRF) vulnerabilities in the HMS Testimonials plugin before 2.0.11 for WordPress allow remote attackers to hijack the authentication of administrators for requests that (1) add new testimonials via the hms-testimonials-addnew page, (2) add new groups via the hms-testimonials-addnewgroup page, (3) change default settings via the hms-testimonials-settings page, (4) change advanced settings via the hms-testimonials-settings-advanced page, (5) change custom fields settings via the hms-testimonials-settings-fields page, or (6) change template settings via the hms-testimonials-templates-new page to wp-admin/admin.php.