CVE-2026-4782

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

2026-05-12 21:06

Strategic Overview

Status: Patched in 3.15.3
Affected Plugin: Avada (Fusion) Builder
Affected Version: <= 3.15.2
CVSS: 6.5Medium
Weakness type: CWE-36 · Absolute Path Traversal
CVE: CVE-2026-4782

View all Avada (Fusion) Builder vulnerabilities

At a glance

CVE-2026-4782 is a medium-severity Absolute Path Traversal vulnerability in the Avada (Fusion) Builder WordPress plugin, affecting versions <= 3.15.2. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 3.15.3; sites on affected versions should update now. Disclosed May 2026, reported by Rafie Muhammad.

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-36: Absolute Path Traversal

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize absolute path sequences such as /abs/path that can resolve to a location that is outside of that directory.

Remediation

Update to version 3.15.3, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Avada (Fusion) Builder 3.15.3 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-4782 https://www.wordfence.com/threat-intel/vulnerabilities/id/86346be9-7ca6-49b7-83b2-01a335d48c94 https://nvd.nist.gov/vuln/detail/CVE-2026-4782

Related records

Other vulnerabilities in Avada (Fusion) Builder

CVSS Vector

6.5

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone

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