CVE-2020-20640: Shopex Ecshop

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

Cross Site Scripting (XSS) vulnerability in ECShop 4.0 due to security filtering issues, in the user.php file, we can use the html entity encoding to bypass the security policy of the safety.php file, triggering the xss vulnerability.

Affected products

• Shopex Ecshop: version 4.0 only

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