JVN#63765888
EC-CUBE vulnerable to multi-factor authentication bypass

Overview

EC-CUBE provided by EC-CUBE CO.,LTD. contains a multi-factor authentication (MFA) bypass vulnerability.

Products Affected

• EC-CUBE 4.1 series versions prior to 4.1.2-p5
• EC-CUBE 4.2 series versions prior to 4.2.3-p2
• EC-CUBE 4.3 series versions prior to 4.3.1-p1

Description

EC-CUBE provided by EC-CUBE CO.,LTD. contains the following vulnerability.

• Authentication bypass using an alternate path or channel (CWE-288)
  • CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N Base Score 6.9
  • CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N Base Score 4.9
  • CVE-2026-30777

Impact

An attacker who has obtained a valid administrator ID and password may be able to bypass two-factor authentication and gain unauthorized access to the administrative page.

Solution

Apply the patches
Apply the appropriate patch according to the information provided by the developer.