CVE-2026-86784
Medium
Description
The Visualizer WordPress plugin before 4.0.8 does not sanitise and escape a chart's JSON data source configuration before outputting it back in the chart editor, allowing users with the Contributor role and above to store JavaScript that executes in the browser of any higher-privileged user, such as an administrator, who reviews the affected chart.
SeverityMedium
CVSS6.8
Exploit probability—
ProductVisualizer
PublishedSep 16, 2026
First seenSep 16, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Visualizer4.0.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Visualizer | v < 4.0.8 | 4.0.8 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.