CVE-2026-15441

The WC Product Table Lite plugin for WordPress is vulnerable to CSS Injection in versions up to, and including, 5.6.0 via the 'laptop_scroll_offset' shortcode attribute exposed through the unauthenticated wcpt_ajax() AJAX handler. The handler is registered for wp_ajax_nopriv_wcpt_ajax, JSON-decodes attacker-supplied attributes, only allowlists key names (not values), applies a preg_replace that strips only [ ] < >, and passes the value through do_shortcode into wcpt_style__sticky_sidebar(), where it is interpolated verbatim into inline CSS ('top: {$top}px;' and 'max-height: calc(100vh - {$top}px);') with no numeric casting or CSS escaping. This makes it possible for unauthenticated attackers to inject arbitrary CSS declarations and rules on pages rendering a product table with sticky sidebar enabled, which can be leveraged for data exfiltration (via attribute-selector + background-image URLs), UI redressing, and phishing that bypasses CSPs permitting inline styles.

• CWE-74

• https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.1.0/main.php#L2677
• https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.1.0/main.php#L2686
• https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.1.0/style-functions.php#L995
• https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.4.0/main.php#L2677
• https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.4.0/main.php#L2686
• https://plugins.trac.wordpress.org/browser/wc-product-table-lite/tags/5.4.0/style-functions.php#L995
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3638932%40wc-product-table-lite&new=3638932%40wc-product-table-lite
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6c0a8be1-8853-4863-90e5-af3831f800e9?source=cve

Published

Aug 16, 2026

Last Modified

Aug 20, 2026

Status

Deferred

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