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CVE-2026-120561— JetFormBuilder <= 3.6.2 - Missing Authorization to Unauthenticated JetEngine Options Page Modification

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（动态区块表单构建器）在所有 3.6.2 及更早版本中存在数据未经授权的修改漏洞。该漏洞源于"Update_Options"操作类中的 函数缺少能力（capability）检查。当管理员配置了包含“提交后更新选项（Update Options）”操作的表单时，未认证的攻击者可借此修改 JetEngine 选项页面的值。该漏洞的触发需要同时满足以下条件：JetFormBuilder 和 JetEngine 插件均已安装并启用，且管理员已明确配置了带有“更新选项”操

CVSS 5.3 · Medium
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I. Basic Information for CVE-2026-120561

Vulnerability Information
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Vulnerability Title
JetFormBuilder <= 3.6.2 - Missing Authorization to Unauthenticated JetEngine Options Page Modification
Source: CVE Program / CVE List V5
Vulnerability Description
The JetFormBuilder — Dynamic Blocks Form Builder plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'do_action' function in the 'Update_Options' action class in all versions up to, and including, 3.6.2. This makes it possible for unauthenticated attackers to modify JetEngine Options Page values when an administrator has configured a form with the "Update Options" post-submission action. The vulnerability requires that both JetFormBuilder and JetEngine are installed and active, and that an administrator has specifically configured a form with the Update Options action.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jetmonsters JetFormBuilder — Dynamic Blocks Form Builder 0 ~ 3.6.2 -

II. Public POCs for CVE-2026-120561

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III. Intelligence Information for CVE-2026-120561

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Other References for CVE-2026-120561 (8)

IV. Related Vulnerabilities

Same product: JetFormBuilder — Dynamic Blocks Form Builder
Same vendor: jetmonsters
Same weakness: CWE-862