Description
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.
Published: 2026-03-05
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Bypass of two‑factor authentication leading to unauthorized administrative access
Action: Immediate Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 16 Apr 2026 13:15:00 +0000

Type Values Removed Values Added
Title Multi‑Factor Authentication Bypass in EC‑Cube Administrator Login

Mon, 09 Mar 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Ec-cube ec-cube
CPEs cpe:2.3:a:ec-cube:ec-cube:*:-:*:*:*:*:*:*
cpe:2.3:a:ec-cube:ec-cube:4.1.2:-:*:*:*:*:*:*
cpe:2.3:a:ec-cube:ec-cube:4.1.2:p1:*:*:*:*:*:*
cpe:2.3:a:ec-cube:ec-cube:4.1.2:p2:*:*:*:*:*:*
cpe:2.3:a:ec-cube:ec-cube:4.1.2:p3:*:*:*:*:*:*
cpe:2.3:a:ec-cube:ec-cube:4.1.2:p4:*:*:*:*:*:*
cpe:2.3:a:ec-cube:ec-cube:4.2.3:-:*:*:*:*:*:*
cpe:2.3:a:ec-cube:ec-cube:4.2.3:p1:*:*:*:*:*:*
cpe:2.3:a:ec-cube:ec-cube:4.3.1:-:*:*:*:*:*:*
Vendors & Products Ec-cube ec-cube
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'}


Fri, 06 Mar 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 06 Mar 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Ec-cube
Ec-cube ec-cube 4.1 Series
Ec-cube ec-cube 4.2 Series
Ec-cube ec-cube 4.3 Series
Vendors & Products Ec-cube
Ec-cube ec-cube 4.1 Series
Ec-cube ec-cube 4.2 Series
Ec-cube ec-cube 4.3 Series

Thu, 05 Mar 2026 05:45:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-288
References
Metrics cvssV3_0

{'score': 4.9, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 6.9, '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'}


Subscriptions

Ec-cube Ec-cube Ec-cube 4.1 Series Ec-cube 4.2 Series Ec-cube 4.3 Series
cve-icon MITRE

Status: PUBLISHED

Assigner: jpcert

Published:

Updated: 2026-03-06T18:19:20.427Z

Reserved: 2026-03-04T22:26:32.318Z

Link: CVE-2026-30777

cve-icon Vulnrichment

Updated: 2026-03-06T18:19:17.117Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-05T06:16:51.997

Modified: 2026-03-09T18:34:56.787

Link: CVE-2026-30777

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T13:00:11Z

Weaknesses