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CVE-2026-92212— JetFormBuilder <= 3.6.5.3 - Reflected Cross-Site Scripting via 'jfb_xss' (URL Query Variable) Parameter via Calculated Field

Quick assessment

Affected
jetmonsters JetFormBuilder — Dynamic Blocks 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 插件 JetFormBuilder — Dynamic Blocks Form Builder 存在反射型跨站脚本（XSS）漏洞，该漏洞可通过 URL 查询变量参数 触发，具体利用方式为在“计算字段”（Calculated Field）中嵌入恶意脚本。在所有 3.6.5.3 及更早版本中，由于对输入数据缺乏足够的 sanitization（清理）和输出时缺少正确的 escaping（转义），攻击者无需认证即可在页面中注入任意 Web 脚本。若攻击者成功诱导用户执行某些操作（例如点击包含恶意参数的

CVSS 6.1 · Medium EPSS 0.21% · P11
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I. Basic Information for CVE-2026-92212

Vulnerability Information
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Vulnerability Title
JetFormBuilder <= 3.6.5.3 - Reflected Cross-Site Scripting via 'jfb_xss' (URL Query Variable) Parameter via Calculated Field
Source: CVE Program / CVE List V5
Vulnerability Description
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via 'jfb_xss' (URL Query Variable) Parameter via Calculated Field in all versions up to, and including, 3.6.5.3 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. Exploitation requires the targeted page to host a form configured with both a URL Query Variable preset field and a Calculated Field that references it, which are standard plugin features.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
jetmonsters JetFormBuilder — Dynamic Blocks Form Builder 0 ~ 3.6.5.3 -

II. Public POCs for CVE-2026-92212

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III. Intelligence Information for CVE-2026-92212

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News Coverage for CVE-2026-92212 (1)

Other References for CVE-2026-92212 (5)

IV. Related Vulnerabilities

Same product: JetFormBuilder — Dynamic Blocks Form Builder
Same vendor: jetmonsters
Same weakness: CWE-79

V. Comments for CVE-2026-92212

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