CVE-2026-103671 [MEDIUM] – External control of assumed-Immutable web parameter issue exists in EC-CUBE plugin (for EC

External control of assumed-Immutable web parameter issue exists in EC-CUBE plugin (for EC-CUBE 4 series) “AmazonPay Plugin”. If exploited, the user may be redirected to an arbitrary website during the ordering process. As a result, user’s account information may be obtained.