CVE-2026-17571— Fluent Forms <= 6.2.8 - Reflected Cross-Site Scripting via 'param'
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| wpmanageninja | Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder | ≤ 6.2.8 | affected |
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I. Basic Information for CVE-2026-17571
Vulnerability Information
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Vulnerability Title
Fluent Forms <= 6.2.8 - Reflected Cross-Site Scripting via 'param'
Source: CVE Program / CVE List V5
Vulnerability Description
The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'param' in all versions up to, and including, 6.2.8 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/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 Fluent Forms 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Fluent Forms是WordPress基金会开源的一款表单插件。 WordPress Fluent Forms 6.2.8及之前版本存在跨站脚本漏洞，该漏洞源于输入清理和输出转义不足，可能导致未认证攻击者通过参数param注入任意Web脚本，成功诱骗用户点击链接时执行。
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 |
|---|---|---|---|---|
| wpmanageninja | Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder | 0 ~ 6.2.8 | - |
II. Public POCs for CVE-2026-17571
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Patches & Fixes for CVE-2026-17571 (2)
Vendor Advisories for CVE-2026-17571 (1)
IV. Related Vulnerabilities
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- CVE-2026-17567
Fluent Forms <= 6.2.8 - Unauthenticated Sensitive Informatio - CVE-2026-16655
Fluent Forms <= 6.2.7 - Unauthenticated Stored Cross-Site Sc - CVE-2026-5069
Fluent Forms <= 6.2.1 - Incorrect Authorization to Authentic - CVE-2026-5395
Fluent Forms <= 6.2.0 - Authenticated (Subscriber+) Authoriz - CVE-2026-5396
Fluent Forms <= 6.1.21 - Authenticated (Subscriber+) Authori
Same vendor: wpmanageninja
- CVE-2026-61964
WordPress Ninja Tables plugin <= 5.2.9 - Cross Site Scriptin - CVE-2026-16636
FluentSMTP <= 2.2.95 - Unauthenticated Stored Cross-Site Scr - CVE-2026-17567
Fluent Forms <= 6.2.8 - Unauthenticated Sensitive Informatio - CVE-2026-16655
Fluent Forms <= 6.2.7 - Unauthenticated Stored Cross-Site Sc - CVE-2026-15665
Fluent Support <= 2.3.0 - Authenticated (Contributor+) Store
Same weakness: CWE-79
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WordPress Facebook for WooCommerce plugin <= 3.7.5 - Cross S - CVE-2026-66706
WordPress Subscribe to Comments plugin <= 2.3.1 - Cross Site - CVE-2026-66705
WordPress Facebook for WordPress plugin <= 5.2.1 - Cross Sit - CVE-2026-66703
WordPress MailOptin plugin <= 1.2.78.0 - Cross Site Scriptin
V. Comments for CVE-2026-17571
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