What is CVE-2026-3239?

CVE-2026-3239 is a medium-severity vulnerability in Wpchill Strong Testimonials, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-08.

How severe is CVE-2026-3239?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Wpchill Strong Testimonials

CVE-2026-3239

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (10.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Wpchill Strong Testimonials — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-3239?: CVE-2026-3239 is a medium-severity vulnerability in Wpchill Strong Testimonials, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-08.
How severe is CVE-2026-3239?: Medium severity. CVSS v3 base score is 6.4 out of 10.