CVE-2026-90974
Received Received - Intake

WP Fusion Lite WordPress Plugin Authentication Bypass

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: WPScan

Description
The WP Fusion Lite WordPress plugin before 3.48.0 does not require authentication on a settings handler that runs during admin initialization, allowing unauthenticated users to overwrite the site's CRM integration endpoint and credentials, after which synced user data is delivered to an attacker-chosen host.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-01
AI Q&A
2026-10-01
EPSS Evaluated
N/A
NVD
CVE-2026-90974
EUVD
EUVD-2026-90516

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
wp_fusion wp_fusion_lite to 3.48.0 (exc)
wp_fusion wp_fusion_lite From 3.37.14 (inc) to 3.47.14 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability affects the WP Fusion Lite WordPress plugin versions 3.37.14 through 3.47.14. It allows unauthenticated users to update the site's CRM integration settings without authorization. This happens because a settings handler lacks authentication and runs during admin initialization. Attackers can overwrite the CRM endpoint and credentials, redirecting synced user data to a server of their choice.

Detection Guidance

Check if your WP Fusion Lite plugin version is between 3.37.14 and 3.47.14. If so, the vulnerability is present. You can verify the version via WordPress admin panel under Plugins or by checking the plugin files for version details.

Impact Analysis

Unauthenticated attackers could gain control over where your website's user data is sent. This means sensitive user information synced via the plugin could be intercepted by malicious servers controlled by attackers. It could lead to data breaches, unauthorized access to user data, and potential misuse of personal information.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA. GDPR requires protecting personal data and ensuring it is not sent to unauthorized servers. HIPAA mandates safeguarding protected health information. A breach could result in legal penalties, fines, and reputational damage due to unauthorized data exposure.

Mitigation Strategies

Update WP Fusion Lite to version 3.48.0 or later immediately. If updating is not possible, consider disabling the plugin temporarily until an update is applied.

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