CVE-2026-93430: XSS (CVSS 7.2)

Description

The GD Rating System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'title' and 'url' Render Args in gdrts_live_handler AJAX in all versions up to, and including, 3.7.1 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. Although the AJAX action requires a per-item nonce, that nonce is publicly emitted in the page's <script class="gdrts-rating-data"> JSON block on every page rendering the rating item, making it obtainable by any unauthenticated visitor and therefore not an authentication barrier.

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CVSS v3.1 Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0027

Probability of exploitation

0.18%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://plugins.trac.wordpress.org/browser/gd-rating-system/tags/3.7.1/rating/core.ajax.php#L184 https://plugins.trac.wordpress.org/browser/gd-rating-system/tags/3.7.1/rating/core.item.php#L383 https://plugins.trac.wordpress.org/browser/gd-rating-system/tags/3.7.1/rating/engine.single.php#L140 https://plugins.trac.wordpress.org/browser/gd-rating-system/tags/3.7.1/templates/stars-rating/gdrts--stars-rating--list--default-table.php#L44 https://plugins.trac.wordpress.org/changeset?reponame=&old=3723329%40gd-rating-system&new=3723329%40gd-rating-system https://www.wordfence.com/threat-intel/vulnerabilities/id/5f06140d-c28f-4dfb-be61-cc8f59884766?source=cve

Frequently Asked Questions

What is CVE-2026-93430? +

The GD Rating System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'title' and 'url' Render Args in gdrts_live_handler AJAX in all versions up to, and including, 3.7.1 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. Although the AJAX action requires a per-item nonce, that nonce is publicly emitted in the page's <script class="gdrts-rating-data"> JSON block on every page rendering the rating item, making it obtainable by any unauthenticated visitor and therefore not an authentication barrier. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-93430? +

CVE-2026-93430 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0027, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-93430? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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