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Vulnerability record · CVE-2026-13440 · published 28 July 2026

CVE-2026-13440: Cross-site scripting vulnerability

The StoreGrowth: Smart Sales Booster for WooCommerce | BOGO, Upsells, Direct Checkout, Quick View, Side Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'message_popup' parameter in all versions up to, and including, 2.1.0 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 exploit is possible because the 'ajd_protected' nonce required by the create_popup handler is exposed to all unauthenticated frontend visitors via wp_localize_script under bogo_save_url.ajd_nonce, effectively bypassing the nonce-only access control.

7.2 CVSS 3.1 High EPSS 0.46% · top 62.7% CWE-79 · Cross-site scripting Deferred
7.2CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
28 Jul 2026Last modified by NVD

Description

The StoreGrowth: Smart Sales Booster for WooCommerce | BOGO, Upsells, Direct Checkout, Quick View, Side Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'message_popup' parameter in all versions up to, and including, 2.1.0 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 exploit is possible because the 'ajd_protected' nonce required by the create_popup handler is exposed to all unauthenticated frontend visitors via wp_localize_script under bogo_save_url.ajd_nonce, effectively bypassing the nonce-only access control.

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

References

LinkTags
https://plugins.trac.wordpress.org/browser/storegrowth-sales-booster/tags/2.0.5/modules/bogo/includes/EnqueueScript.php#
https://plugins.trac.wordpress.org/browser/storegrowth-sales-booster/tags/2.0.5/modules/sales-pop/assets/js/popup-custom
https://plugins.trac.wordpress.org/browser/storegrowth-sales-booster/tags/2.0.5/modules/sales-pop/includes/Ajax.php#L47
https://plugins.trac.wordpress.org/browser/storegrowth-sales-booster/tags/2.1.0/modules/bogo/includes/EnqueueScript.php#
https://plugins.trac.wordpress.org/browser/storegrowth-sales-booster/tags/2.1.0/modules/sales-pop/assets/js/popup-custom
https://plugins.trac.wordpress.org/browser/storegrowth-sales-booster/tags/2.1.0/modules/sales-pop/includes/Ajax.php#L47
https://plugins.trac.wordpress.org/changeset?reponame=&old=3619581%40storegrowth-sales-booster&new=3619581%40storegrowth
https://www.wordfence.com/threat-intel/vulnerabilities/id/79d4d776-411e-45ec-aff7-23453e686bf2?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-13440), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.