What the vulnerability does
01Description
The Strong Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's testimonial_view 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.
Explanation of Vulnerability in Simple Terms
02Summary
Strong Testimonials versions 3.2.21 and earlier contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability has changed scope, meaning injected code can affect other users or site functionality beyond the plugin itself. An attacker with low-level site access can exploit this without user interaction.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that executes in other users' browsers or affects site functionality.
Potential impact on your site
04Site Impact
Authenticated attackers can deface content, steal session tokens, or redirect users to malicious sites.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege account (e.g., subscriber or contributor role) on the WordPress site.
Key dates
06Disclosure timeline
April 8, 2026
CVE published
April 8, 2026
Record updated
