CVE-2022-33201: Mailerlite Signup Forms

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

Cross-Site Request Forgery (CSRF) vulnerability in MailerLite – Signup forms (official) plugin <= 1.5.7 at WordPress allows an attacker to change the API key.

Affected products

• Mailerlite Mailerlite Signup Forms: before 1.5.8 (fixed in 1.5.8)

Published 2022-08-05. Last modified 2026-06-17.