CVE-2021-39333— Hashthemes Demo Importer <= 1.1.1 Improper Access Control Allowing Content Deletion
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I. Basic Information for CVE-2021-39333
Vulnerability Information
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Vulnerability Title
Hashthemes Demo Importer <= 1.1.1 Improper Access Control Allowing Content Deletion
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Hashthemes Demo Importer Plugin <= 1.1.1 for WordPress contained several AJAX functions which relied on a nonce which was visible to all logged-in users for access control, allowing them to execute a function that truncated nearly all database tables and removed the contents of wp-content/uploads.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress和WordPress plugin 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。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress Plugin Hashthemes Demo Importer <= 1.1.1 存在安全漏洞，该漏洞源于受影响产品包含几个 AJAX 函数，这些函数依赖对所有登录用户可见的随机数进行访问控制，允许他们执行一个函数，该函数可以截断几乎所有数
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 |
|---|---|---|---|---|
| Hashthemes | Hashthemes Demo Importer | 1.1.1 ~ 1.1.1 | - |
II. Public POCs for CVE-2021-39333
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same vendor: Hashthemes
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Easy Elementor Addons <= 2.2.9 - Authenticated (Contributor+ - CVE-2025-58973
WordPress Easy Elementor Addons Plugin <= 2.2.8 - Local File - CVE-2025-59561
WordPress Smart Blocks Plugin <= 2.4 - Broken Access Control
Same weakness: CWE-284
- CVE-2026-8233
Dotouch XproUPF access control - CVE-2026-42569
phpvms: /importer authorization bypass causing full database - CVE-2026-42205
Avo: Broken Access Control: Unauthorized Execution of Arbitr - CVE-2026-41487
Langfuse: Improper role-based-access control in Langfuse LLM - CVE-2026-42278
UltraDAG: Smart Account Spending Policy Bypass via Pockets
V. Comments for CVE-2021-39333
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