CVE-2026-8689

The Visualizer: Tables and Charts Manager for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.11.14. This is due to a missing capability check on the renderChartPages() and uploadData() functions, where the wp_ajax_visualizer-create-chart and wp_ajax_visualizer-edit-chart AJAX actions invoke renderChartPages() without any current_user_can() check, and wp_ajax_visualizer-upload-data invokes uploadData() which also lacks a capability check and validates its nonce without an action argument, making it trivially bypassable. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create arbitrary chart posts and access or modify chart data belonging to other users, including administrators.

• CWE-862

• https://plugins.trac.wordpress.org/browser/visualizer/tags/3.11.14/classes/Visualizer/Module/Chart.php#L1221
• https://plugins.trac.wordpress.org/browser/visualizer/tags/3.11.14/classes/Visualizer/Module/Chart.php#L531
• https://plugins.trac.wordpress.org/browser/visualizer/tags/3.11.14/classes/Visualizer/Module/Chart.php#L56
• https://plugins.trac.wordpress.org/browser/visualizer/tags/4.0.1/classes/Visualizer/Module/Chart.php#L1221
• https://plugins.trac.wordpress.org/browser/visualizer/tags/4.0.1/classes/Visualizer/Module/Chart.php#L531
• https://plugins.trac.wordpress.org/browser/visualizer/tags/4.0.1/classes/Visualizer/Module/Chart.php#L56
• https://plugins.trac.wordpress.org/changeset/3474710
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d18e9696-0f96-4478-9871-a93ac2976c11?source=cve

Published

May 28, 2026

Last Modified

Jun 17, 2026

Status

Deferred

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