CVE-2021-20717: Ec-Cube

Medium severity, CVSS 6.1. EPSS: 2.3% chance of exploitation in the next 30 days.

Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.

Affected products

• Ec-Cube Ec-Cube: from 4.0.0, before 4.0.5 (fixed in 4.0.5)

Published 2021-05-10. Last modified 2026-06-17.