Quick answers
- Is CVE-2026-5523 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-5523 being exploited in the wild.
- How severe is CVE-2026-5523?
- High severity, with a CVSS score of 8.8, published 9 July 2026.
- Which products and versions are affected?
- Divi Engine Divi Form Builder up to, and including, 5.1.8.
- Is there a fix for CVE-2026-5523?
- A patch was published on 2026-05-24: Security hardening released in version 5.1.9 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-5523 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-5523?
- Check whether you run Divi Engine Divi Form Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The Divi Form Builder plugin for WordPress is vulnerable to an Insecure Direct Object Reference (IDOR) and Missing Authorization flaw in versions up to 5.1.8. The root cause is located in the update_user() function, which accepts a user ID parameter from form submissions without verifying if the authenticated user has the necessary permissions to modify that specific account. Additionally, the handle_register_submission() function fails to validate permissions for the target user, only checking if a user is logged in. An authenticated attacker with subscriber-level permissions can exploit these flaws to change the email and password of any user, including administrators. A patch was released in version 5.1.9.
Affected products
- Divi Engine Divi Form Builder up to, and including, 5.1.8
Timeline
- 2026-05-24: patched: Security hardening released in version 5.1.9
- 2026-07-09: disclosed: CVE published to NVD