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CVE-2026-5523— Divi Form Builder <= 5.1.8 - Authenticated (Subscriber+) Missing Authorization to Privilege Escalation via User Profile Update Form

Quick assessment

Affected
Divi Engine Divi 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.

Divi Engine Divi Form Builder是Divi Engine的表单生成器。 Divi Engine Divi Form Builder 5.1.8及之前版本存在授权问题漏洞，该漏洞源于update_user()函数接受表单提交中的用户ID参数而未验证已认证用户是否有权限编辑特定用户账户，且handle_register_submission()函数仅检查是否有用户登录而未验证目标用户权限，可能导致已认证攻击者（具有订阅者级别及以上权限）更改任意用户账户的电子邮件和密码，导致完全账户接

CVSS 8.8 · High EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1136 · Create Account

Affected Version Matrix 1

VendorProduct Version RangeStatus
Divi Engine Divi Form Builder ≤ 5.1.8 affected
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I. Basic Information for CVE-2026-5523

Vulnerability Information
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Vulnerability Title
Divi Form Builder <= 5.1.8 - Authenticated (Subscriber+) Missing Authorization to Privilege Escalation via User Profile Update Form
Source: CVE Program / CVE List V5
Vulnerability Description
The Divi Form Builder plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 5.1.8. This is due to the update_user() function accepting a user ID parameter from form submissions without verifying that the authenticated user has permission to edit that specific user account, and the handle_register_submission() function only checking if any user is logged in rather than validating permissions for the target user. This makes it possible for authenticated attackers, with subscriber-level access and above, to change the email address and password of any user account, including administrators, resulting in complete account takeover.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Divi Engine Divi Form Builder 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Divi Engine Divi Form Builder是Divi Engine的表单生成器。 Divi Engine Divi Form Builder 5.1.8及之前版本存在授权问题漏洞，该漏洞源于update_user()函数接受表单提交中的用户ID参数而未验证已认证用户是否有权限编辑特定用户账户，且handle_register_submission()函数仅检查是否有用户登录而未验证目标用户权限，可能导致已认证攻击者（具有订阅者级别及以上权限）更改任意用户账户的电子邮件和密码，导致完全账户接
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
Divi Engine Divi Form Builder 0 ~ 5.1.8 -

II. Public POCs for CVE-2026-5523

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III. Intelligence Information for CVE-2026-5523

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News Coverage for CVE-2026-5523 (1)

IV. Related Vulnerabilities

Same product: Divi Form Builder
Same vendor: Divi Engine
Same weakness: CWE-639

V. Comments for CVE-2026-5523

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