CVE-2026-27536

MailChimp Subscribe Forms versions up to 4.3.3 are vulnerable to unauthenticated Cross Site Scripting (XSS), allowing attackers to inject malicious scripts into web pages viewed by users. This could lead to session hijacking, data theft, or defacement of the affected sites. Organizations using these versions should prioritize remediation to protect user data and maintain the integrity of their web applications.