How severe is CVE-2026-3424?

Medium severity. CVSS v3 base score is 5.3 out of 10.

RCE in Properfraction Kk Star Ratings – Rate Post & Collect User Feedbacks

CVE-2026-3424

The The kk Star Ratings – Rate Post & Collect User Feedbacks plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.4.10.3. This is due to the software allowing users to execute an action that does not properly validate the 'payload' value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Properfraction Kk Star Ratings – Rate Post & Collect User Feedbacks

Weakness classification (CWE)

CWE-94 — Code Injection

References

Frequently asked questions

What is CVE-2026-3424?: CVE-2026-3424 is a medium-severity vulnerability in Properfraction Kk Star Ratings – Rate Post & Collect User Feedbacks, classified under Code Injection. CVSS score: 5.3/10. Published 2026-08-22.
How severe is CVE-2026-3424?: Medium severity. CVSS v3 base score is 5.3 out of 10.