CVE-2026-86779
Received Received - Intake

Unauthorised Chart Deletion in Visualizer WordPress Plugin

Publication date: 2026-09-11

Last updated on: 2026-09-11

Assigner: WPScan

Description
The Visualizer WordPress plugin before 4.0.6 does not properly authorise chart-deletion requests, performing only a site-wide capability check with no per-object ownership verification, allowing users with the Contributor role and above to permanently delete any chart on the site, including charts created by other users such as administrators.

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Meta Information

Published
2026-09-11
Last Modified
2026-09-11
Generated
2026-09-11
AI Q&A
2026-09-11
EPSS Evaluated
N/A
NVD
CVE-2026-86779
EUVD
EUVD-2026-75968

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
visualizer visualizer to 4.0.6 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

The Visualizer WordPress plugin before version 4.0.6 has a vulnerability where users with the Contributor role or higher can delete any chart on the site without proper authorization. The plugin does not verify ownership of charts before deletion, allowing these users to permanently remove charts created by others, including administrators.

Detection Guidance

To detect this vulnerability, check the installed version of the Visualizer plugin in WordPress. If the version is below 4.0.6, the system is vulnerable. Use the WordPress admin dashboard or run the command: wp plugin list --name=visualizer --fields=name,version.

Impact Analysis

This vulnerability allows unauthorized users to delete important charts, potentially causing data loss or disrupting site functionality. Charts created by administrators or other users could be permanently removed, affecting the integrity of the site's content.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized users to delete data (charts) that may contain sensitive information. Under GDPR, unauthorized deletion of personal data could violate integrity and availability principles, while HIPAA requires safeguards to prevent unauthorized alteration or deletion of protected health information.

Mitigation Strategies

Immediately update the Visualizer plugin to version 4.0.6 or later. If updating is not possible, consider temporarily disabling the plugin until an update is applied. Review user roles to ensure only trusted users have Contributor access or higher.

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