themefusion Avada Builder Plugin up to 3.15.1 on WordPress Dynamic Data Feature output_action_hook code injection

Summaryinfo

A vulnerability labeled as critical has been found in themefusion Avada Builder Plugin up to 3.15.1 on WordPress. Impacted is the function output_action_hook of the component Dynamic Data Feature. Such manipulation leads to code injection. This vulnerability is documented as CVE-2026-1509. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in themefusion Avada Builder Plugin up to 3.15.1 on WordPress. Affected by this issue is the function output_action_hook of the component Dynamic Data Feature. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The Avada (Fusion) Builder plugin for WordPress is vulnerable to Arbitrary WordPress Action Execution in all versions up to, and including, 3.15.1. This is due to the plugin's `output_action_hook()` function accepting user-controlled input to trigger any registered WordPress action hook without proper authorization checks. This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute arbitrary WordPress action hooks via the Dynamic Data feature, potentially leading to privilege escalation, file inclusion, denial of service, or other security impacts depending on which action hooks are available in the WordPress installation.

The weakness was released by Craig Smith. The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-1509 since 01/27/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/16/2026). This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202604-3304). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• themefusion

Name

• Avada Builder Plugin

Version

• 3.15.0
• 3.15.1

CPE 2.3info

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• 🔒

CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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