What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
The Visualizer: Tables and Charts Manager plugin for WordPress does not properly check user permissions before allowing certain actions. A logged-in user with low privileges can modify data they should not have access to. The vulnerability affects versions up to 3.11.14. Site administrators should update the plugin to a version newer than 3.11.14.
What an attacker can do
03Attacker Capabilities
A low-privilege logged-in user can modify plugin data without proper authorization checks.
Potential impact on your site
04Site Impact
Unauthorized users can alter charts, tables, or visualizer settings, potentially corrupting site content or data.
Conditions required to exploit
05Prerequisites
Attacker must have a WordPress user account with low privileges (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
May 28, 2026
CVE published
May 28, 2026
Record updated
