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TI-2026-04834 Aliases CVE-2026-5523GHSA-c9hw-vrgh-hh3m

Authorization bypass in Divi Form Builder

Priority MEDIUM 40CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00442 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Divi EngineDivi Form Builderup to 5.1.8—No fix listedCNA
  • Divi Form Builder VendorDivi Engine Affected up to 5.1.8 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-5523
  2. 2026-10-03 Alias added: GHSA-c9hw-vrgh-hh3m

References

Other 2

  • TI-2026-04835 Unrestricted file upload in Divi Form Builder CVSS 3.1CRITICAL 9.8
  • TI-2026-65799 Divi Membership <= 2.3.0 - Unauthenticated Authentication Bypass via 'paypal_param' Parameter CVSS 3.1CRITICAL 9.8
  • TI-2026-10025 Divi Ajax Filter <= 5.1.2 - Unauthenticated Local File Inclusion via 'custom_loop_template' Parameter CVSS 3.1CRITICAL 9.8
  • TI-2026-65798 Divi Membership <= 2.2.0 - Unauthenticated Privilege Escalation via 'form_id' Parameter CVSS 3.1CRITICAL 9.8
  • TI-2026-04468 Divi Form Builder <= 5.1.2 - Unauthenticated Privilege Escalation via 'role' CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences