WP Fusion Lite Plugin up to 3.47.x on WordPress Settings authorization

Summaryinfo

A vulnerability, which was classified as critical, has been found in WP Fusion Lite Plugin up to 3.47.x. Affected by this vulnerability is an unknown functionality of the component Settings Handler. The manipulation leads to authorization. This vulnerability is documented as CVE-2026-90974. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in WP Fusion Lite Plugin up to 3.47.x and classified as critical. This issue affects an unknown functionality of the component Settings Handler. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at wpscan.com. The identification of this vulnerability is CVE-2026-90974 since 09/14/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.48.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-90516). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• WP Fusion Lite Plugin

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 3.12
• 3.13
• 3.14
• 3.15
• 3.16
• 3.17
• 3.18
• 3.19
• 3.20
• 3.21
• 3.22
• 3.23
• 3.24
• 3.25
• 3.26
• 3.27
• 3.28
• 3.29
• 3.30
• 3.31
• 3.32
• 3.33
• 3.34
• 3.35
• 3.36
• 3.37
• 3.38
• 3.39
• 3.40
• 3.41
• 3.42
• 3.43
• 3.44
• 3.45
• 3.46
• 3.47

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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