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Vulnerability record · CVE-2026-84280 · published 25 September 2026

CVE-2026-84280: Cross-site scripting vulnerability

The Fancy Product Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Order 'elements[].title' Parameter in all versions up to, and including, 6.5.2 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. The injected payload is written to the DOM via innerHTML within the beforeElementAdd JavaScript event handler when processing the elements[].title field from the stored order JSON, meaning execution occurs specifically when an administrator reviews shortcode orders in the WordPress admin panel.

7.2 CVSS 3.1 High EPSS 0.27% · top 82.3% CWE-79 · Cross-site scripting Deferred
7.2CVSS 3.1 base score
0.27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
25 Sep 2026Last modified by NVD

Description

The Fancy Product Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Shortcode Order 'elements[].title' Parameter in all versions up to, and including, 6.5.2 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. The injected payload is written to the DOM via innerHTML within the beforeElementAdd JavaScript event handler when processing the elements[].title field from the stored order JSON, meaning execution occurs specifically when an administrator reviews shortcode orders in the WordPress admin panel.

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

References

LinkTags
https://fancyproductdesigner.com/
https://www.wordfence.com/threat-intel/vulnerabilities/id/e4c1e5eb-324e-4841-afd0-c59b319ddd0e?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-84280), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.