MailChimp Campaigns <= 3.2.4 - Missing Authorization to Authenticated (Subscriber+) MailChimp App Disconnection

Missing Authorization
CVE CVE-2026-1303
CVSS Medium (5.3)
Publicly Published February 13, 2026
Last Updated February 14, 2026
Researcher Nabil Irawan
Description

The MailChimp Campaigns plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 3.2.4. This is due to missing capability checks on the `mailchimp_campaigns_manager_disconnect_app` function that is hooked to the AJAX action of the same name. This makes it possible for authenticated attackers, with Subscriber-level access and above, to disconnect the site from its MailChimp synchronization app, disrupting automated email campaigns and marketing integrations.

References

1 affected software package

Software Type Plugin
Software Slug olalaweb-mailchimp-campaign-manager (view on wordpress.org)
Patched? No
Affected Version
  • <= 3.2.4
Patched Version
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