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CVE-2026-16655— Fluent Forms <= 6.2.7 - Unauthenticated Stored Cross-Site Scripting via Name Field Nested `password` Member

Quick assessment

Affected
wpmanageninja Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational 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 Fluent Forms是WordPress基金会开源的一款表单插件。 WordPress Fluent Forms 6.2.7及之前版本存在跨站脚本漏洞，该漏洞源于Name Field Nested Member存在输入清理和输出转义不足，容易受到存储型跨站脚本攻击，可能导致未认证攻击者注入任意Web脚本，在用户访问时执行。

CVSS 7.2 · High EPSS 0.53% · P43

Affected Version Matrix 1

VendorProduct Version RangeStatus
wpmanageninja Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder ≤ 6.2.7 affected
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I. Basic Information for CVE-2026-16655

Vulnerability Information
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Vulnerability Title
Fluent Forms <= 6.2.7 - Unauthenticated Stored Cross-Site Scripting via Name Field Nested `password` Member
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 Stored Cross-Site Scripting via Name Field Nested `password` Member in all versions up to, and including, 6.2.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers 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:N/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 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 6.2.7及之前版本存在跨站脚本漏洞，该漏洞源于Name Field Nested `password` Member存在输入清理和输出转义不足，容易受到存储型跨站脚本攻击，可能导致未认证攻击者注入任意Web脚本，在用户访问时执行。
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 ~ 6.2.7 -

II. Public POCs for CVE-2026-16655

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III. Intelligence Information for CVE-2026-16655

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Patches & Fixes for CVE-2026-16655 (6)

Vendor Advisories for CVE-2026-16655 (1)

Vendor Pages for CVE-2026-16655 (1)

Other References for CVE-2026-16655 (1)

IV. Related Vulnerabilities

Same product: Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder
Same vendor: wpmanageninja
Same weakness: CWE-79

V. Comments for CVE-2026-16655

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