CVE-2026-13440
Received Received - Intake

Stored XSS in StoreGrowth Smart Sales Booster for WooCommerce

Publication date: 2026-07-28

Last updated on: 2026-07-28

Assigner: Wordfence

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.

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Meta Information

Published
2026-07-28
Last Modified
2026-07-28
Generated
2026-07-28
AI Q&A
2026-07-28
EPSS Evaluated
N/A
NVD
CVE-2026-13440
EUVD
EUVD-2026-49761

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
storegrowth smart_sales_booster_for_woocommerce to 2.1.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This WordPress plugin vulnerability allows unauthenticated attackers to inject malicious scripts into web pages via the 'message_popup' parameter. The flaw exists due to insufficient input sanitization and output escaping in versions up to 2.1.0. Attackers can execute arbitrary web scripts when users access infected pages.

Detection Guidance

Check for suspicious scripts in WordPress pages by inspecting page source for injected scripts in the 'message_popup' parameter. Use Wordfence scanner or similar tools to detect unauthorized script modifications in WooCommerce pages.

Impact Analysis

Unauthenticated attackers could steal user sessions, redirect visitors to malicious sites, or perform actions on their behalf. Users accessing compromised pages may have their data exposed or devices infected with malware. Website owners risk reputational damage and potential legal consequences.

Compliance Impact

This vulnerability could lead to unauthorized data access or processing, violating GDPR's data protection requirements. For HIPAA-covered entities, it may compromise protected health information security. Both regulations require implementing measures to prevent such breaches.

Mitigation Strategies

Update the StoreGrowth plugin to the latest version beyond 2.1.0. If an update is unavailable, disable the plugin temporarily. Review and remove any unauthorized scripts in the 'message_popup' parameter via WordPress admin panel.

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