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CVE-2017-20192— Formidable Form Builder < 2.05.03 - Unauthenticated Stored Cross-Site Scripting

Quick assessment

Affected
strategy11team Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder
Exploitation
Public or AI PoC available; prioritize validation
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 Formidable Form Builder 2.05.03版本存在跨站脚本漏洞，该漏洞源于包含一个存储型跨站脚本问题。

CVSS 8.3 · High EPSS 1.09% · P64

Public Exploits 1

Nuclei · 1 CVE-2017-20192.yaml [template]

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2017-20192

Vulnerability Information
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Vulnerability Title
Formidable Form Builder < 2.05.03 - Unauthenticated Stored Cross-Site Scripting
Source: CVE Program / CVE List V5
Vulnerability Description
The Formidable Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple parameters submitted during form entries like 'after_html' in versions before 2.05.03 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute in a victim's browser.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
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 Formidable 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 Formidable Form Builder 2.05.03版本存在跨站脚本漏洞，该漏洞源于包含一个存储型跨站脚本问题。
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
strategy11team Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder * ~ 2.05.03 -

II. Public POCs for CVE-2017-20192

# POC Description Source Link Shenlong Link
1 Docker lab for CVE-2017-20192 (Formidable Forms < 2.05.03 stored XSS) https://github.com/flame-11/CVE-2017-20192-formidable-forms POC Details
2 Formidable Form Builder for WordPress versions before 2.05.03 contains a stored cross-site scripting caused by insufficient input sanitization and output escaping in form parameters like 'after_html', letting unauthenticated attackers inject and execute arbitrary scripts in victims' browsers https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2017/CVE-2017-20192.yaml POC Details
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III. Intelligence Information for CVE-2017-20192

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Vendor Advisories for CVE-2017-20192 (1)

Other References for CVE-2017-20192 (2)

IV. Related Vulnerabilities

Same product: Formidable Forms – Contact Form Plugin, Survey, Quiz, Payment, Calculator Form & Custom Form Builder
Same vendor: strategy11team
Same weakness: CWE-79

V. Comments for CVE-2017-20192

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