Impact statement: Avada Builder, also known as Fusion Builder, has two publicly disclosed WordPress security issues tracked as CVE-2026-4782 and CVE-2026-4798. Wordfence reports that the first can expose sensitive server files to logged-in subscriber-level users, and the second can expose database data without requiring a WordPress login under specific site conditions. Sites using Avada should update the Avada theme and Avada Builder plugin now, then review users, configuration exposure, and WooCommerce/customer data paths.
This is a high-priority maintenance item because Avada is widely deployed and often used on business, ecommerce, agency, and brochure sites that have been online for years. Old builder plugins tend to sit quietly until something breaks. In this case, the safer path is to patch first, then check whether anything unusual happened.
Who Is Affected
Check any WordPress site running Avada, Avada Website Builder, Avada Builder, Fusion Builder, or Fusion Core. Avada’s vendor security notice also says the May 12, 2026 Avada 7.15.3 update fixed several additional security issues, including a remote-code-execution class issue, so do not treat this as only a plugin point release.
| Component | Affected versions | Fixed version | Risk |
|---|---|---|---|
| Avada Builder / Fusion Builder | 3.15.2 and older for CVE-2026-4782 | 3.15.3 or newer | Sensitive file exposure to low-privilege logged-in users |
| Avada Builder / Fusion Builder | 3.15.1 and older for CVE-2026-4798 | 3.15.2 or newer, with 3.15.3 preferred | Database data exposure under specific WooCommerce-history conditions |
| Avada Website Builder theme bundle | Older than 7.15.3 | 7.15.3 or newer | Vendor security update covering additional input-handling and code-execution risk |
What To Patch
Update Avada to 7.15.3 or newer and Avada Builder/Fusion Builder to 3.15.3 or newer. If the Avada dashboard, WordPress dashboard, or ThemeForest updater offers a newer stable version, install the newer version. Also update Fusion Core and any other bundled Avada plugins shown in the Avada maintenance panel.
If a site uses WooCommerce now, used WooCommerce in the past, has customer orders, has membership records, or allows subscriber registrations, put it ahead of lower-risk brochure sites.
Safe Version Checks
Use these commands only on WordPress installs you own, manage, or are authorized to support. They are inventory and update checks, not vulnerability tests.
wp core version
wp theme list --fields=name,status,update,version
wp plugin list --fields=name,status,update,version | grep -Ei 'avada|fusion'
wp user list --role=administrator --fields=ID,user_login,user_email,user_registered
If WP-CLI is not available, use the WordPress dashboard. Open Appearance, Themes, Plugins, and the Avada maintenance/update screen. Confirm the Avada theme, Avada Builder, Fusion Builder, and Fusion Core components are current.
Patch Walkthrough
- Back up first. Take a database backup and file backup, or snapshot the hosting account if your platform supports it.
- Update the theme bundle. Update Avada to 7.15.3 or newer using the Avada updater, WordPress dashboard, or your licensed ThemeForest update workflow.
- Update bundled plugins. Update Avada Builder/Fusion Builder to 3.15.3 or newer, then update Fusion Core and other Avada-managed plugins shown as outdated.
- Clear caches. Clear WordPress cache, object cache, page cache, CDN cache, and PHP opcache where used.
- Test the site. Check the home page, Avada-built landing pages, forms, WooCommerce product pages, cart, checkout, logged-in customer pages, and any membership pages.
- Record the change. Note the old version, new version, update time, who applied it, and whether any templates or forms needed repair.
If You Cannot Patch Today
- Put the site behind maintenance controls or restrict WordPress logins to trusted staff until updates can be applied.
- Disable public user registration if the site does not need it.
- Disable unused Avada/Fusion components on staging first, then production if the site can tolerate it.
- Ask the CDN/WAF team to increase scrutiny on suspicious WordPress builder traffic while the real update is scheduled.
- Tell the site owner exactly which pages need retesting after the Avada update.
Review After Patching
Treat outdated Avada installs as possible sensitive-data exposure until your review says otherwise. That does not mean every site is compromised. It means the review should be organized and documented.
- Review WordPress administrators, editors, customers, and subscribers for unexpected accounts or role changes.
- Review recent password resets, new user registrations, and account email changes.
- Review WooCommerce orders, coupons, customer exports, and payment plugin settings for unexpected changes.
- Review wp-config.php exposure risk. If there are signs of abuse, rotate database credentials and WordPress salts after the site is stable.
- Review plugin, theme, upload, cache, and mu-plugin directories for unexpected executable files.
- Review web server logs and security plugin logs for repeated anonymous database-looking traffic or unusual logged-in builder activity.
Hosting Provider Notes
Managed WordPress providers should search for Avada, Fusion Builder, Fusion Core, and older Avada child-theme deployments. Prioritize ecommerce, membership, LMS, lead-generation, and public-registration sites. Agencies should also check staging copies that might still be internet-accessible and forgotten after a redesign.
For customer messaging, keep it practical: Avada released a security update, the site should be updated to Avada 7.15.3 or newer and Avada Builder 3.15.3 or newer, and business-critical forms or checkout flows should be tested afterward.
CDN And WAF Notes
A WAF can help reduce noisy abuse while updates are scheduled, but it is not the fix. The durable fix is updating Avada and Avada Builder. CDN/WAF teams should watch for unusual WordPress builder traffic, repeated anonymous database-oriented probes, and low-privilege users interacting with builder functions in ways that do not match normal site behavior. Keep request-level tuning details internal.
Fix I.T. Phill Guidance
If you run Avada, update it before the next normal maintenance cycle. Avada sites are often business-critical and visually complex, so take the backup, update the theme and builder together, clear caches, and walk the important pages. If anything looks off, restore from a clean backup or fix on staging before assuming the public site is finished.