Auth bypass in Mailerlite – Woocommerce Integration
CVE-2026-1000
The MailerLite - WooCommerce integration plugin for WordPress is vulnerable to unauthorized data modification and deletion in all versions up to, and including, 3.1.3. This is due to missing capability checks on the resetIntegration() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to reset the plugin's integration settings, delete all plugin options, and drop the plugin's database tables (woo_mailerlite_carts and woo_mailerlite_jobs), resulting in complete loss of plugin data including customer abandoned cart information and sync job history.
Vulnerability class: Broken Access Control
EPSS: 0.003 (20.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Mailerlite – Woocommerce Integration — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-1000?
- CVE-2026-1000 is a medium-severity vulnerability in Mailerlite – Woocommerce Integration, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-01-16.
- How severe is CVE-2026-1000?
- Medium severity. CVSS v3 base score is 6.5 out of 10.