Vulnerability in Strong Testimonials — CVE-2026-115811

What to do now

Update Strong Testimonials to 3.3.17 or later.

Affected versions

• Everything up to and including 3.3.16

The Strong Testimonials plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'star_rating' parameter in all versions up to, and including, 3.3.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful execution requires an administrator to open the standard Preview link for a pending testimonial, a step the plugin's normal moderation workflow naturally invites.

This description is reproduced verbatim from the public vulnerability record.

• https://plugins.trac.wordpress.org/browser/strong-testimonials/tags/3.3.15/includes/class-strong-testimonials-form.php#L292
• https://plugins.trac.wordpress.org/browser/strong-testimonials/tags/3.3.15/includes/class-strong-testimonials-render.php#L278
• https://plugins.trac.wordpress.org/browser/strong-testimonials/tags/3.3.15/includes/class-strong-testimonials-render.php#L351
• https://plugins.trac.wordpress.org/browser/strong-testimonials/tags/3.3.15/includes/class-strong-testimonials-render.php#L648
• https://plugins.trac.wordpress.org/browser/strong-testimonials/tags/3.3.15/includes/class-strong-view-slideshow.php#L306
• https://plugins.trac.wordpress.org/browser/strong-testimonials/tags/3.3.15/includes/class-strong-view-slideshow.php#L319

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.