MailerLite – Signup forms (official), CVE-2026-25420

CVE, Research URL: CVE-2026-25420
Home page URL: Security reports for MailerLite – Signup forms (official)
Application: MailerLite – Signup forms (official)
Published on: Feb 19, 2026
Research 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.
Affected versions: max 1.7.18.
Status: vulnerable

MailerLite &#8211; Signup forms (official), CVE-2026-25420