CVE-2025-11975
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk10th 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
See all- 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.
- CVE-2025-11976Medium
The FuseWP – WordPress User Sync to Email List & Marketing Automation plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.1.23.0. This is due to missing or incorrect nonce validation on the save_changes function. This makes it possible for unauthenticated attackers to add or edit sync rules 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