CVE-2026-92435 Mailchimp for WooCommerce < 6.1.1 - Unauthenticated Broken Access Control in REST API
Unauthenticated attackers can access admin REST API endpoints to modify persistent state due to missing capability checks in the Mailchimp for WooCommerce plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-92435?
CVE-2026-92435 is a medium-severity missing authorization vulnerability in Unknown Mailchimp for WooCommerce, published on 19 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Mailchimp for WooCommerce WordPress plugin before 6.1.1 does not verify that the requesting user holds the required capability in the permission callback for several of its REST API routes, allowing unauthenticated users to reach administrator-oriented endpoints and trigger a persistent state change.
Weakness: CWE-862
Which versions are affected by CVE-2026-92435?
How do I fix CVE-2026-92435?
No fix has been published for CVE-2026-92435 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-92435 being exploited?
There is no known exploitation of CVE-2026-92435 in the wild and no public exploit code.
Sources
Also known as GHSA-qc48-4x35-wh3c.