CVE-2026-4782 MEDIUM

CVE-2026-4782: Avada Builder <= 3.15.2 - Authenticated (Subscriber+) Arbitrary File Read via 'custom_svg' Shortcode Parameter

Vendor Themefusion
Product Avada (Fusion) Builder
Weakness CWE-36
Published May 13, 2026
Last update May 13, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

Avada (Fusion) Builder versions up to 3.15.2 contain an information disclosure vulnerability. An authenticated user with low privileges can read sensitive data they should not have access to. The vulnerability requires network access and does not require user interaction. No integrity or availability impact occurs.

What an attacker can do

03Attacker Capabilities

Read sensitive data or information they should not have access to.

Potential impact on your site

04Site Impact

Authenticated users can access confidential information beyond their permission level.

Conditions required to exploit

05Prerequisites

Attacker must be authenticated with a low-privilege account on the site.

Key dates

06Disclosure timeline

May 13, 2026 CVE published
May 13, 2026 Record updated