themeisle Visualizer Plugin up to 4.0.3 on WordPress Standard WordPress REST Endpoint action authorization

Summaryinfo

A vulnerability marked as critical has been reported in themeisle Visualizer Plugin up to 4.0.3 on WordPress. Affected is an unknown function of the file /wp-json/visualizer/v1/action of the component Standard WordPress REST Endpoint. Performing a manipulation results in authorization. This vulnerability is cataloged as CVE-2026-13468. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in themeisle Visualizer Plugin up to 4.0.3 on WordPress. It has been classified as critical. This affects an unknown code of the file /wp-json/visualizer/v1/action of the component Standard WordPress REST Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Visualizer – Tables & Charts Manager with Built-in AI Generator plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.0.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to access and export the contents of any visualizer chart on the site — including charts in draft, private, pending, future, or trash status — as CSV, Excel, or HTML via the /wp-json/visualizer/v1/action/{chart}/{type}/ REST endpoint. This bypass is particularly impactful because the standard WordPress REST endpoint for the non-public 'visualizer' custom post type correctly enforces capability checks and returns HTTP 401 to unauthenticated callers, whereas this plugin-registered route circumvents that protection entirely.

The weakness was shared by Niv Kochan. It is possible to read the advisory at wordfence.com. This vulnerability is uniquely identified as CVE-2026-13468 since 06/26/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 4.0.1 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• themeisle

Name

• Visualizer Plugin

Version

• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3

CPE 2.3info

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CPE 2.2info

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