CVE-2025-11975

MediumCVSS 4.3

Published: 31/10/2025(UTC)Updated: 07/10/2026(UTC)Translated: 08/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.21%

10th percentile - higher than 10% of all known CVEs

Summary

The FuseWP 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 1.1.23.0. This makes it possible for unauthenticated attackers to add and edit sync rules.

Risk Assessment

The risk involves the possibility of unauthorized modification of sync rules, which could lead to data integrity compromise or uncontrolled data transfer to external services. An attacker can change configuration without any privileges.

Recommendation

It is recommended to update the FuseWP plugin to the latest patched version. Also, ensure that the save_changes() function requires proper capabilities.

Other vulnerabilities in FuseWP

CVE-2026-5582Medium
The FuseWP plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.1.24.2. This is due to missing nonce verification on the toggle_sync_status() function. This makes it possible for unauthenticated attackers to toggle the status of sync rules (enable/disable) via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS