Visualizer backend chart titles permit stored XSS
Visualizer through 4.0.5 lets a Contributor submit an attacker-controlled backend-title value through the authenticated /wp-admin/admin-ajax.php visualizer-edit-chart action while saving chart data and settings. _handleDataAndSettingsPage() stores the POST settings in the chart's Visualizer_Plugin::CF_SETTINGS metadata without sanitizing that field, and Visualizer_Render_Page_Data renders backend-title into the chart editor input without attribute escaping. The stored payload executes when a user opens the affected chart's data editor.
- Component
- Visualizer – Tables & Charts Manager with Built-in AI Generator
- Plugin slug
visualizer- Affected
- <= 4.0.5
- Safe version
4.0.6- Published
- Jul 24, 2026
This CVE was published Jul 24, 2026 and is one of 14 known issues for this plugin.
Update, patch or deactivate.
Update Visualizer to 4.0.6 or later. The fixed release sanitizes chart settings before update_post_meta() and applies esc_attr() when rendering backend-title. Review charts edited by untrusted Contributor accounts and replace suspicious internal titles.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Visualizer – Tables & Charts Manager with Built-in AI Generator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'backend-title' parameter in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N