Authentication bypass in EC-CUBE 4.1 series
Priority LOW 31CWE-288Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-288.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00385 32nd percentileScored 2026-11-07
Fix Fixed EC-CUBE 4.1 series (EC-CUBE CO.,LTD.): 4.1.2-p5EC-CUBE 4.2 series (EC-CUBE CO.,LTD.): 4.2.3-p2+1 more product
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| EC-CUBE CO.,LTD. | EC-CUBE 4.1 series | before 4.1.2-p5 | 4.1.2-p5 | Patch available | CNA |
| EC-CUBE CO.,LTD. | EC-CUBE 4.2 series | before 4.2.3-p2 | 4.2.3-p2 | Patch available | CNA |
| EC-CUBE CO.,LTD. | EC-CUBE 4.3 series | before 4.3.1-p1 | 4.3.1-p1 | Patch available | CNA |
- EC-CUBE 4.1 series VendorEC-CUBE CO.,LTD. Affected before 4.1.2-p5 Fixed in 4.1.2-p5 Patch available CNA
- EC-CUBE 4.2 series VendorEC-CUBE CO.,LTD. Affected before 4.2.3-p2 Fixed in 4.2.3-p2 Patch available CNA
- EC-CUBE 4.3 series VendorEC-CUBE CO.,LTD. Affected before 4.3.1-p1 Fixed in 4.3.1-p1 Patch available CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ec-cube:ec-cube:*:-:*:*:*:*:*:* | 4.1.0 to before 4.1.2; 4.2.0 to before 4.2.3; 4.3.0 to before 4.3.1 | Vulnerable | EC-CUBE CO.,LTD. |
| cpe:2.3:a:ec-cube:ec-cube:4.1.2:-:*:*:*:*:*:* | 4.1.2 | Vulnerable | EC-CUBE CO.,LTD. |
| cpe:2.3:a:ec-cube:ec-cube:4.1.2:p1:*:*:*:*:*:* | 4.1.2 p1 | Vulnerable | EC-CUBE CO.,LTD. |
| cpe:2.3:a:ec-cube:ec-cube:4.1.2:p2:*:*:*:*:*:* | 4.1.2 p2 | Vulnerable | EC-CUBE CO.,LTD. |
| cpe:2.3:a:ec-cube:ec-cube:4.1.2:p3:*:*:*:*:*:* | 4.1.2 p3 | Vulnerable | EC-CUBE CO.,LTD. |
| cpe:2.3:a:ec-cube:ec-cube:4.1.2:p4:*:*:*:*:*:* | 4.1.2 p4 | Vulnerable | EC-CUBE CO.,LTD. |
| cpe:2.3:a:ec-cube:ec-cube:4.2.3:-:*:*:*:*:*:* | 4.2.3 | Vulnerable | EC-CUBE CO.,LTD. |
| cpe:2.3:a:ec-cube:ec-cube:4.2.3:p1:*:*:*:*:*:* | 4.2.3 p1 | Vulnerable | EC-CUBE CO.,LTD. |
| cpe:2.3:a:ec-cube:ec-cube:4.3.1:-:*:*:*:*:*:* | 4.3.1 | Vulnerable | EC-CUBE CO.,LTD. |
- cpe:2.3:a:ec-cube:ec-cube:*:-:*:*:*:*:*:* Versions 4.1.0 to before 4.1.2; 4.2.0 to before 4.2.3; 4.3.0 to before 4.3.1 Vulnerable ·EC-CUBE CO.,LTD.
- cpe:2.3:a:ec-cube:ec-cube:4.1.2:-:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·EC-CUBE CO.,LTD.
- cpe:2.3:a:ec-cube:ec-cube:4.1.2:p1:*:*:*:*:*:* Versions 4.1.2 p1 Vulnerable ·EC-CUBE CO.,LTD.
- cpe:2.3:a:ec-cube:ec-cube:4.1.2:p2:*:*:*:*:*:* Versions 4.1.2 p2 Vulnerable ·EC-CUBE CO.,LTD.
- cpe:2.3:a:ec-cube:ec-cube:4.1.2:p3:*:*:*:*:*:* Versions 4.1.2 p3 Vulnerable ·EC-CUBE CO.,LTD.
- cpe:2.3:a:ec-cube:ec-cube:4.1.2:p4:*:*:*:*:*:* Versions 4.1.2 p4 Vulnerable ·EC-CUBE CO.,LTD.
- cpe:2.3:a:ec-cube:ec-cube:4.2.3:-:*:*:*:*:*:* Versions 4.2.3 Vulnerable ·EC-CUBE CO.,LTD.
- cpe:2.3:a:ec-cube:ec-cube:4.2.3:p1:*:*:*:*:*:* Versions 4.2.3 p1 Vulnerable ·EC-CUBE CO.,LTD.
- cpe:2.3:a:ec-cube:ec-cube:4.3.1:-:*:*:*:*:*:* Versions 4.3.1 Vulnerable ·EC-CUBE CO.,LTD.
Remediation
- Fix · CNA EC-CUBE 4.1 series (EC-CUBE CO.,LTD.) Fixed in 4.1.2-p5
- Fix · CNA EC-CUBE 4.2 series (EC-CUBE CO.,LTD.) Fixed in 4.2.3-p2
- Fix · CNA EC-CUBE 4.3 series (EC-CUBE CO.,LTD.) Fixed in 4.3.1-p1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30777
- 2026-10-03 Alias added: GHSA-x865-r8g8-5r6r
References
More EC-CUBE CO.,LTD. Ec-cube vulnerabilities
- TI-2020-04559 Path traversal in EC-CUBE CVSS 3.1HIGH 8.1
- TI-2023-25304 Code injection in EC-CUBE 4 series CVSS 3.1HIGH 7.2
- TI-2021-04004 Improper access control vulnerability in EC-CUBE 4.0.6 (EC-CUBE 4 series) allows a remote… CVSS 3.1HIGH 7.5
- TI-2020-04641 Improper input validation in EC-CUBE CVSS 3.1HIGH 7.5
- TI-2008-04745 SQL injection vulnerability in LOCKON CO.,LTD. CVSS 2.0HIGH 7.5
- TI-2008-04326 SQL injection vulnerability in EC-CUBE Ver2 2.1.2a and earlier, and Ver2 RC 2.3.0-rc1 and… CVSS 2.0HIGH 7.5
Sources
- CVE-2026-30777 · CVE Program
- CVE-2026-30777 · NVD
- FIRST EPSS
- GHSA-x865-r8g8-5r6r · GitHub Advisory Database · CC BY 4.0
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