Zero-Day Advisory

Fortinet Discovers WordPress Plugin Testimonials Cross-Site Scripting Vulnerability


Fortinet's FortiGuard Labs has discovered a stored cross-site scripting (XSS) vulnerability in the WordPress plugin Testimonials developed by Shaped Plugin.

Testimonial is the Best Testimonials Showcase Plugin for WordPress built to display testimonials, reviews or quotes in multiple ways on any page or widget. The plugin has over 10,000 active installations.

A stored XSS vulnerability exists in the version of the plugin 2.1.6. Successful exploitation of this vulnerability would allow an authenticated low-privileged user to inject arbitrary javascript code in the testimonial creation form which is viewed by other users.


FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Released Feb 20, 2020

Users should update the plugin to the latest version (2.2).


Fortinet reported the vulnerability to WordPress Plugin Team on  January 28, 2020 

WordPress Plugin Team acknowledged the vulnerability on  February 06, 2020 

Shaped Plugin Team patched the vulnerability on  March 25, 2020 


This vulnerability was discovered by Vishnupriya Ilango of Fortinet's FortiGuard Labs

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.