CVE-2026-86782: Unknown Visualizer

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

The Visualizer WordPress plugin before 4.0.6 does not properly authorise access to its chart-building actions, allowing users with the Contributor role and above to publish, rename, and overwrite the content of posts and pages they do not own, including other users' private drafts.

Affected products

• Unknown Visualizer: from 4.0.0, before 4.0.6 (fixed in 4.0.6)

Published 2026-09-11. Last modified 2026-09-11.