CVE-2026-5582 FuseWP <= 1.1.24.2 - Cross-Site Request Forgery to Sync Rule Status Toggle
Unauthenticated attackers can toggle sync rule statuses by tricking administrators into clicking a link due to missing nonce verification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-5582?
CVE-2026-5582 is a medium-severity vulnerability in FuseWP – WordPress User Sync to Email List & Marketing Automation (Mailchimp, Constant Contact, ActiveCampaign etc.), published on 30 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-352
Which versions are affected by CVE-2026-5582?
How do I fix CVE-2026-5582?
No fix has been published for CVE-2026-5582 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-5582 being exploited?
There is no known exploitation of CVE-2026-5582 in the wild and no public exploit code.
Sources
Also known as GHSA-hj2v-9cpv-vv4f.