CVE-2023-40203: Mailmunch Mailchimp Forms

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Missing Authorization vulnerability in MailMunch MailChimp Forms by MailMunch allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MailChimp Forms by MailMunch: from n/a through 3.1.4.

Affected products

• Mailmunch Mailchimp Forms: before 3.1.5 (fixed in 3.1.5)

Published 2024-12-13. Last modified 2026-06-17.