Cross-Site Request Forgery Vulnerability in FuseWP Plugin for WordPress
CVE-2026-5582

4.3MEDIUM

Key Information:

Vendor

WordPress
Status
FuseWP – WordPress User Sync To Email List & Marketing Automation (mailchimp, Constant Contact, Activecampaign Etc.)
Vendor
CVE Published:
30 July 2026

What is CVE-2026-5582?

The FuseWP plugin for WordPress is vulnerable to Cross-Site Request Forgery due to a lack of nonce verification in the toggle_sync_status() function. This flaw enables unauthenticated attackers to manipulate sync rule statuses on WordPress sites by tricking administrators into executing malicious requests, such as clicking on a deceptive link. The vulnerability affects all versions of the plugin up to and including 1.1.24.2, emphasizing the need for immediate attention and remediation by site owners and administrators.

Affected Version(s)

FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.) 0 <= 1.1.24.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://wordpress.org/plugins/fusewp/
https://plugins.trac.wordpress.org/browser/fusewp/trunk/s...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Deadbee
.