CVE-2026-5523: CWE-639 Authorization Bypass Through User-Controlled Key in Divi Engine Divi Form Builder
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.
AI Analysis
Technical Summary
CVE-2026-5523 is an authorization bypass vulnerability in Divi Engine's Divi Form Builder WordPress plugin, affecting versions up to 5.1.8. The issue stems from insufficient permission checks in the update_user() and handle_register_submission() functions, which allow authenticated users with low privileges to modify arbitrary user accounts. This enables attackers to change credentials of any user, including administrators, resulting in complete account takeover. The CVSS 3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability.
Potential Impact
An authenticated attacker with subscriber-level access or higher can exploit this vulnerability to change the email address and password of any user account, including administrators. This leads to complete account takeover, compromising the confidentiality, integrity, and availability of the affected WordPress site.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict user roles and permissions to trusted users only and monitor for suspicious account changes. Avoid granting unnecessary privileges to low-level users.
CVE-2026-5523: CWE-639 Authorization Bypass Through User-Controlled Key in Divi Engine Divi Form Builder
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.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-5523 is an authorization bypass vulnerability in Divi Engine's Divi Form Builder WordPress plugin, affecting versions up to 5.1.8. The issue stems from insufficient permission checks in the update_user() and handle_register_submission() functions, which allow authenticated users with low privileges to modify arbitrary user accounts. This enables attackers to change credentials of any user, including administrators, resulting in complete account takeover. The CVSS 3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability.
Potential Impact
An authenticated attacker with subscriber-level access or higher can exploit this vulnerability to change the email address and password of any user account, including administrators. This leads to complete account takeover, compromising the confidentiality, integrity, and availability of the affected WordPress site.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict user roles and permissions to trusted users only and monitor for suspicious account changes. Avoid granting unnecessary privileges to low-level users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-04-04T00:04:43.797Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4f575268715ace43edbdf1
Added to database: 07/09/2026, 08:09:54 UTC
Last enriched: 07/09/2026, 08:10:17 UTC
Last updated: 07/09/2026, 08:55:01 UTC
Views: 6
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