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CVE-2026-8689— Visualizer: Tables and Charts Manager for WordPress <= 3.11.14 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Chart Creation and Modification via renderChartPages() and uploadData() Functions

Quick assessment

Affected
themeisle Visualizer: Tables and Charts Manager for WordPress
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Visualizer: Tables and Charts Manager for WordPress 3.11.14及之前版本存在安全漏洞，该漏洞源于renderChartPages和uploadData函数缺少权

CVSS 4.3 · Medium EPSS 0.40% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
themeisle Visualizer: Tables and Charts Manager for WordPress ≤ 3.11.14 affected
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I. Basic Information for CVE-2026-8689

Vulnerability Information
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Vulnerability Title
Visualizer: Tables and Charts Manager for WordPress <= 3.11.14 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Chart Creation and Modification via renderChartPages() and uploadData() Functions
Source: CVE Program / CVE List V5
Vulnerability Description
The Visualizer: Tables and Charts Manager for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.11.14. This is due to a missing capability check on the renderChartPages() and uploadData() functions, where the wp_ajax_visualizer-create-chart and wp_ajax_visualizer-edit-chart AJAX actions invoke renderChartPages() without any current_user_can() check, and wp_ajax_visualizer-upload-data invokes uploadData() which also lacks a capability check and validates its nonce without an action argument, making it trivially bypassable. This makes it possible for authenticated attackers, with Subscriber-level access and above, to create arbitrary chart posts and access or modify chart data belonging to other users, including administrators.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Visualizer: Tables and Charts Manager for WordPress 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Visualizer: Tables and Charts Manager for WordPress 3.11.14及之前版本存在安全漏洞，该漏洞源于renderChartPages和uploadData函数缺少权
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
themeisle Visualizer: Tables and Charts Manager for WordPress 0 ~ 3.11.14 -

II. Public POCs for CVE-2026-8689

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III. Intelligence Information for CVE-2026-8689

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Other References for CVE-2026-8689 (1)

IV. Related Vulnerabilities

Same product: Visualizer: Tables and Charts Manager for WordPress
Same vendor: themeisle
Same weakness: CWE-862

V. Comments for CVE-2026-8689

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