FuseWP Plugin up to 1.1.23.0 on WordPress save_changes authorization

Summaryinfo

A vulnerability was found in FuseWP Plugin up to 1.1.23.0 on WordPress. It has been classified as critical. This issue affects the function save_changes. The manipulation leads to authorization. This vulnerability is uniquely identified as CVE-2025-11975. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in FuseWP Plugin up to 1.1.23.0 on WordPress. It has been rated as critical. This issue affects the function save_changes. 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 FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_changes() function in all versions up to, and including, 1.1.23.0. This makes it possible for unauthenticated attackers to add and edit sync rules.

It is possible to read the advisory at wordfence.com. The identification of this vulnerability is CVE-2025-11975. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/31/2025).

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• FuseWP Plugin

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9
• 1.1.10
• 1.1.11
• 1.1.12
• 1.1.13
• 1.1.14
• 1.1.15
• 1.1.16
• 1.1.17
• 1.1.18
• 1.1.19
• 1.1.20
• 1.1.21
• 1.1.22
• 1.1.23.0

CPE 2.3info

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CPE 2.2info

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