CVE-2026-1640— Taskbuilder <= 5.0.2 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Project/Task Comment Creation
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I. Basic Information for CVE-2026-1640
Vulnerability Information
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Vulnerability Title
Taskbuilder <= 5.0.2 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Project/Task Comment Creation
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Taskbuilder – WordPress Project Management & Task Management plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.0.2. This is due to missing authorization checks on the project and task comment submission functions (AJAX actions: wppm_submit_proj_comment and wppm_submit_task_comment). This makes it possible for authenticated attackers, with subscriber-level access and above, to create comments on any project or task (including private projects they cannot view or are not assigned to), and inject arbitrary HTML and CSS via the insufficiently sanitized comment_body parameter.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制缺失
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Taskbuilder – WordPress Project Management & Task Management 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 Taskbuilder – WordPress Project Management & Task Management 5.0.2及之前版本存在安全漏洞，该漏洞源于缺少授权检查，可能导致授权绕过和任意HTML及CS
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 |
|---|---|---|---|---|
| taskbuilder | Taskbuilder – WordPress Project Management & Task Management,kanban view | * ~ 5.0.2 | - |
II. Public POCs for CVE-2026-1640
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|---|
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IV. Related Vulnerabilities
Same vendor: taskbuilder
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WordPress Taskbuilder plugin <= 4.0.9 - Cross Site Scripting - CVE-2025-30945
WordPress Taskbuilder plugin <= 4.0.7 - Broken Access Contro - CVE-2025-39569
WordPress Taskbuilder plugin <= 4.0.1 - SQL Injection Vulner
Same weakness: CWE-862
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