CVE-2026-30777 PUBLISHED

Assigner: jpcert
Reserved: 04.03.2026 Published: 05.03.2026 Updated: 05.03.2026

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

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS Score: 4.9

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	High	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.0

CVSS Vector: 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
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	EC-CUBE CO.,LTD.
Product	EC-CUBE 4.1 series
Versions	Version prior to 4.1.2-p5 is affected

Vendor	EC-CUBE CO.,LTD.
Product	EC-CUBE 4.2 series
Versions	Version prior to 4.2.3-p2 is affected

Vendor	EC-CUBE CO.,LTD.
Product	EC-CUBE 4.3 series
Versions	Version prior to 4.3.1-p1 is affected

CVE-2026-30777 PUBLISHED

Metrics

Product Status

References

Problem Types