Vulnerability · Published Aug 22, 2026 · Assigned by Wordfence
CVE-2026-3424kk Star Ratings <= 5.4.10.3 - Unauthenticated Arbitrary Shortcode Execution via 'payload' Parameter
Medium 5.3
In plain English
A medium-severity code injection in kk Star Ratings – Rate Post & Collect User Feedbacks from properfraction. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| properfraction | kk Star Ratings – Rate Post & Collect User Feedbacks | 0 – through 5.4.10.3 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0b2e9103-16a8-4350-97ee-ae05a90850f6?source=cve
- https://plugins.trac.wordpress.org/browser/kk-star-ratings/trunk/src/core/wp/actions/wp_ajax_kk-star-ratings.php#L88
- https://plugins.trac.wordpress.org/browser/kk-star-ratings/trunk/src/core/wp/actions/wp_ajax_kk-star-ratings.php#L85
- https://plugins.trac.wordpress.org/browser/kk-star-ratings/trunk/src/core/functions/scripts/main.php#L36
- https://plugins.trac.wordpress.org/changeset/3474555/