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4.3
MailerLite: Unsecured Sign-Up Forms Allow Unauthorized Access
CVE-2026-25420
Summary
MailerLite's sign-up forms may be vulnerable to unauthorized access if not properly configured. This means that an attacker could potentially access or modify your sign-up forms if they have incorrect security settings. To fix this, update to the latest version of MailerLite, or configure your access control settings correctly.
Original title
Missing Authorization vulnerability in MailerLite MailerLite official-mailerlite-sign-up-forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MailerLite:...
Original description
Missing Authorization vulnerability in MailerLite MailerLite official-mailerlite-sign-up-forms allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MailerLite: from n/a through <= 1.7.18.
nvd CVSS3.1
4.3
Vulnerability type
CWE-862
Missing Authorization
Published: 19 Feb 2026 · Updated: 11 Mar 2026 · First seen: 6 Mar 2026