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CVE-2024-3866— Ninja Forms Contact Form <= 3.8.15 - Reflected Self-Based Cross-Site Scripting via Referer

Quick assessment

Affected
kstover Ninja Forms – The Contact Form Builder That Grows With You
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 Ninja Forms Contact Form 3.8.15版本及之前版本存在跨站脚本漏洞，该漏洞源于对用户的输入清理和输出转义不足。攻击者利用该漏洞可以在页面中注入任意Web脚本。

CVSS 4.7 · Medium EPSS 0.29% · P20
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I. Basic Information for CVE-2024-3866

Vulnerability Information
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Vulnerability Title
Ninja Forms Contact Form <= 3.8.15 - Reflected Self-Based Cross-Site Scripting via Referer
Source: CVE Program / CVE List V5
Vulnerability Description
The Ninja Forms Contact Form plugin for WordPress is vulnerable to Reflected Self-Based Cross-Site Scripting via the 'Referer' header in all versions up to, and including, 3.8.15 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Successful exploitation of this vulnerability requires "maintenance mode" for a targeted form to be enabled. However, there is no setting available to the attacker or even an administrator-level user to enable this mode. The mode is only enabled during a required update, which is a very short window of time. Additionally, because of the self-based nature of this vulnerability, attackers would have to rely on additional techniques to execute a supplied payload in the context of targeted user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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 Ninja Forms Contact Form 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 Ninja Forms Contact Form 3.8.15版本及之前版本存在跨站脚本漏洞，该漏洞源于对用户的输入清理和输出转义不足。攻击者利用该漏洞可以在页面中注入任意Web脚本。
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
kstover Ninja Forms – The Contact Form Builder That Grows With You * ~ 3.8.15 -

II. Public POCs for CVE-2024-3866

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III. Intelligence Information for CVE-2024-3866

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Patches & Fixes for CVE-2024-3866 (1)

Vendor Advisories for CVE-2024-3866 (1)

IV. Related Vulnerabilities

Same product: Ninja Forms – The Contact Form Builder That Grows With You
Same vendor: kstover
Same weakness: CWE-79

V. Comments for CVE-2024-3866

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