CVE-2025-11975
FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) <= 1.1.23.0 - Missing Authorization to Authenticated (Subscriber+) Sync Rule Creation
mediumMissing Authorization
4.3
CVSS Score
4.3
CVSS Score
medium
Severity
1.1.23.1
Patched in
1d
Time to patch
Description
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.
CVSS Vector Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NAttack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
None
Confidentiality
Low
Integrity
None
Availability
Technical Details
Affected versions
<=1.1.23.0PublishedOctober 30, 2025
Last updatedOctober 31, 2025
Affected pluginfusewp
Check if your site is affected.
Run a free security audit to detect vulnerable plugins, outdated versions, and misconfigurations.