CVE-2026-5582

FuseWP <= 1.1.24.2 - Cross-Site Request Forgery to Sync Rule Status Toggle

4.3 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: None

Exploit likelihood

0.20%Up 0.1 points since Jul 31, 2026

What each source reports

CVE List Score used 4.3

FuseWP <= 1.1.24.2 - Cross-Site Request Forgery to Sync Rule Status Toggle

Record: CVE-2026-5582
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness: CWE-352
Updated: 2026-11-02

EUVDEUVD-2026-51096 4.3

Record: EUVD-2026-51096
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-hj2v-9cpv-vv4f 4.3

The FuseWP plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to...

Record: GHSA-hj2v-9cpv-vv4f
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness: CWE-352
Updated: 2026-11-02

NVD 4.3

Record: CVE-2026-5582
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness: CWE-352
Updated: 2026-11-02

Affected products

fusewp – wordpress user sync to email list & marketing automation (mailchimp, constant contact, activecampaign etc.)

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-5582 is a medium vulnerability (CVSS 4.3) in Fusewp – Wordpress User Sync To Email List & Marketing Automation (mailchimp, Constant Contact, Activecampaign Etc.), published July 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.20%, the 9th percentile. No source names a fixed version.