Visualizer lets contributors overwrite other users' content
Visualizer before 4.0.6 does not properly authorize its chart-building actions. A Contributor or higher role can publish, rename, or overwrite posts and pages the attacker does not own, including another user's private drafts. The authoritative export does not identify the action, endpoint, or parameters that carry the attacker-controlled chart content.
- Component
- Visualizer
- Plugin slug
visualizer- Affected
- 4.0.0 to < 4.0.6
- Safe version
4.0.6- Published
- Sep 11, 2026
This CVE was published Sep 11, 2026 and is one of 18 known issues for this plugin.
Update, patch or deactivate.
Update Visualizer to 4.0.6 or later. The authoritative export marks versions below 4.0.6 affected. The application-level fix must enforce object-level ownership and edit permissions before chart actions write to an existing post or page.
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 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N