CVE-2021-20751: Ec-Cube

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

Cross-site scripting vulnerability in EC-CUBE EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to inject an arbitrary script by leading an administrator or a user to a specially crafted page and to perform a specific operation.

Affected products

• Ec-Cube Ec-Cube: from 4.0.0, before 4.0.5 (fixed in 4.0.5); version 4.0.5. only

Published 2021-06-28. Last modified 2026-06-17.