CVE-2026-8713 Avada (Fusion) Builder <= 3.15.3 - Unauthenticated Arbitrary File Deletion via Form Entry Value

Critical 9.1 Published Updated

Unauthenticated attackers can delete arbitrary files via path traversal in Avada Builder, potentially leading to remote code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-8713?

CVE-2026-8713 is a critical path traversal vulnerability in themefusion Avada (Fusion) Builder, published on 19 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Avada (Fusion) Builder plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the maybe_delete_files function in all versions up to, and including, 3.15.3. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The attack requires a published Avada form configured to save entries to the database; an unauthenticated attacker submits a path-traversal payload via the wp_ajax_nopriv_fusion_form_submit_ajax handler while also controlling the fusion_privacy_expiration_interval and privacy_expiration_action fields to force an immediate 'delete' cleanup, causing the planted entry to be automatically processed by the Fusion_Form_DB_Privacy shutdown-hook routine without any administrator interaction.

Weakness: CWE-22

Which versions are affected by CVE-2026-8713?

How do I fix CVE-2026-8713?

No fix has been published for CVE-2026-8713 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-8713 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8713 exists.

Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.

Sources

Also known as GHSA-47xm-33q8-pw6w.

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