CVE-2026-4782 Avada Builder <= 3.15.2 - Authenticated (Subscriber+) Arbitrary File Read via 'custom_svg' Shortcode Parameter
Authenticated attackers can read arbitrary server files via a shortcode parameter in the Avada Builder plugin, exposing sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4782?
CVE-2026-4782 is a medium-severity path traversal vulnerability in themefusion Avada (Fusion) Builder, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Avada Builder plugin for WordPress is vulnerable to Arbitrary File Read in all versions up to, and including, 3.15.2 via the 'fusion_get_svg_from_file' function with the 'custom_svg' parameter of the 'fusion_section_separator' shortcode. This makes it possible for authenticated attackers, with Subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The vulnerability was partially patched in version 3.15.2 and fully patched in version 3.15.3.
Weakness: CWE-36
Which versions are affected by CVE-2026-4782?
How do I fix CVE-2026-4782?
No fix has been published for CVE-2026-4782 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-2026-4782 being exploited?
There is no known exploitation of CVE-2026-4782 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.