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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.

PUBLISHED Reserved 2025-10-20 | Published 2025-10-31 | Updated 2025-10-31 | Assigner Wordfence




MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-862 Missing Authorization

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-10-20:Vendor Notified
2025-10-30:Disclosed

Credits

Jonas Benjamin Friedli finder

References

www.wordfence.com/...-926f-497f-b9f2-b0a67cd09adf?source=cve

plugins.trac.wordpress.org/...dmin/SettingsPage/SyncPage.php

cve.org (CVE-2025-11975)

nvd.nist.gov (CVE-2025-11975)

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