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CVE-2021-4367— Flo Forms – Easy Drag & Drop Form Builder <= 1.0.35 - Options Change to Stored Cross-Site Scripting

Quick assessment

Affected
flothemesplugins Flo Forms – Easy Drag & Drop Form Builder
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 Flo Forms – Easy Drag & Drop Form Builder 存在安全漏洞，该漏洞源于不充分的输入清理和输出转义以及缺少功能检查，使用 AJAX 接口 flo_import_forms_options 通

CVSS 6.4 · Medium EPSS 0.67% · P49
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I. Basic Information for CVE-2021-4367

Vulnerability Information
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Vulnerability Title
Flo Forms – Easy Drag & Drop Form Builder <= 1.0.35 - Options Change to Stored Cross-Site Scripting
Source: CVE Program / CVE List V5
Vulnerability Description
The Flo Forms – Easy Drag & Drop Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Options Change by using the flo_import_forms_options AJAX action in versions up to, and including, 1.0.35 due to insufficient input sanitization and output escaping along with missing capability checks. This makes it possible for authenticated attackers, like subscribers, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress Plugin Flo Forms – Easy Drag & Drop Form Builder 跨站脚本漏洞
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 Flo Forms – Easy Drag & Drop Form Builder 存在安全漏洞，该漏洞源于不充分的输入清理和输出转义以及缺少功能检查，使用 AJAX 接口 flo_import_forms_options 通
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
flothemesplugins Flo Forms – Easy Drag & Drop Form Builder * ~ 1.0.35 -

II. Public POCs for CVE-2021-4367

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III. Intelligence Information for CVE-2021-4367

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Vendor Advisories for CVE-2021-4367 (2)

Security Blog Posts for CVE-2021-4367 (1)

IV. Related Vulnerabilities

Same product: Flo Forms – Easy Drag & Drop Form Builder
Same vendor: flothemesplugins
Same weakness: CWE-79

V. Comments for CVE-2021-4367

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