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MailerLite – Signup forms (official) vulnerabilities

4 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 2 published in the last 12 months.

Check whether your MailerLite – Signup forms (official) version is affected

Latest MailerLite – Signup forms (official) vulnerabilities

• CVE-2026-3253 — MailerLite – Signup forms (official) <= 1.7.21 - Missing Authorization to Authenticated (Contributor+) Form Creation and Deletion (CVSS 4.3)
• CVE-2025-13993 — MailerLite – Signup forms (official) <= 1.7.16 - Authenticated (Administrator+) Stored Cross-Site Scripting (CVSS 5.5)
• CVE-2024-2797 — MailerLite – Signup forms (official) <= 1.7.6 - Missing Authorization (CVSS 5.3)
• CVE-2024-1386 — (CVSS 6.4)