CVE-2021-34627— WP Upload Restriction <= 2.2.3 - Missing Access Control in getSelectedMimeTypesByRole function
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I. Basic Information for CVE-2021-34627
Vulnerability Information
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Vulnerability Title
WP Upload Restriction <= 2.2.3 - Missing Access Control in getSelectedMimeTypesByRole function
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the getSelectedMimeTypesByRole function of the WP Upload Restriction WordPress plugin allows low-level authenticated users to view custom extensions added by administrators. This issue affects versions 2.2.3 and prior.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是WordPress（Wordpress）基金会的一套使用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 WP Upload Restriction 2.2.3及之前版本存在安全漏洞，低级身份验证的用户可以查看管理员添加的自定义扩展。
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 |
|---|---|---|---|---|
| WP Upload Restriction | WP Upload Restriction | 2.2.3 ~ 2.2.3 | - |
II. Public POCs for CVE-2021-34627
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · WP Upload Restriction · 2021-07-07 · 3 CVEs total
| CVE-2021-34625 | 6.4 MEDIUM | WP Upload Restriction <= 2.2.3 - Authenticated Stored Cross-Site Scripting |
| CVE-2021-34626 | 4.3 MEDIUM | WP Upload Restriction <= 2.2.3 - Missing Access Control in deleteCustomType function |
IV. Related Vulnerabilities
Same weakness: CWE-284
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Langfuse: Improper role-based-access control in Langfuse LLM - CVE-2026-42278
UltraDAG: Smart Account Spending Policy Bypass via Pockets
V. Comments for CVE-2021-34627
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