CVE-2026-54804: Melhorenvio Melhor Envio

High severity, CVSS 7.6. EPSS: 0.4% chance of exploitation in the next 30 days.

Subscriber Broken Authentication in Melhor Envio <= 2.16.3 versions.

Affected products

• Melhorenvio Melhor Envio: up to and including 2.16.3

Published 2026-06-17. Last modified 2026-06-17.