Vulnerability-Lookup

JVNDB-2026-000033

Vulnerability from jvndb - Published: 2026-03-05 03:36 - Updated:2026-03-05 03:36

Severity

4.9 (Medium) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Summary

EC-CUBE vulnerable to multi-factor authentication bypass

Details

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

Authentication bypass using an alternate path or channel (CWE-288) - CVE-2026-30777

EC-CUBE CO.,LTD. reported this vulnerability to JPCERT/CC to notify users of its solution through JVN. JPCERT/CC and EC-CUBE CO.,LTD. coordinated under the Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN63765888/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-30777
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

EC-CUBE CO.,LTD.

EC-CUBE

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000033.html",
  "dc:date": "2026-03-05T12:36+09:00",
  "dcterms:issued": "2026-03-05T12:36+09:00",
  "dcterms:modified": "2026-03-05T12:36+09:00",
  "description": "EC-CUBE provided by EC-CUBE CO.,LTD. contains the following vulnerability.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/288.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eAuthentication bypass using an alternate path or channel (CWE-288) - CVE-2026-30777\u003c/li\u003e\u003c/ul\u003eEC-CUBE CO.,LTD. reported this vulnerability to JPCERT/CC to notify users of its solution through JVN. JPCERT/CC and EC-CUBE CO.,LTD. coordinated under the Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000033.html",
  "sec:cpe": {
    "#text": "cpe:/a:ec-cube:ec-cube",
    "@product": "EC-CUBE",
    "@vendor": "EC-CUBE CO.,LTD.",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "4.9",
    "@severity": "Medium",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000033",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN63765888/index.html",
      "@id": "JVN#63765888",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-30777",
      "@id": "CVE-2026-30777",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "EC-CUBE vulnerable to multi-factor authentication bypass"
}

CVE-2026-30777 (GCVE-0-2026-30777)

Vulnerability from cvelistv5 – Published: 2026-03-05 05:31 – Updated: 2026-03-06 18:19

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.

Severity

4.9 (Medium)


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

6.9 (Medium)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-06 18:19 UTC

CWE

CWE-288 - Authentication Bypass Using an Alternate Path or Channel

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://www.ec-cube.net/info/weakness/20260209/in…
https://jvn.jp/en/jp/JVN63765888/

Impacted products

3 products

Vendor	Product	Version
EC-CUBE CO.,LTD.	EC-CUBE 4.1 series	Affected: prior to 4.1.2-p5
EC-CUBE CO.,LTD.	EC-CUBE 4.2 series	Affected: prior to 4.2.3-p2
EC-CUBE CO.,LTD.	EC-CUBE 4.3 series	Affected: prior to 4.3.1-p1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-30777",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-06T18:19:14.257150Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-06T18:19:20.427Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "EC-CUBE 4.1 series",
          "vendor": "EC-CUBE CO.,LTD.",
          "versions": [
            {
              "status": "affected",
              "version": "prior to 4.1.2-p5"
            }
          ]
        },
        {
          "product": "EC-CUBE 4.2 series",
          "vendor": "EC-CUBE CO.,LTD.",
          "versions": [
            {
              "status": "affected",
              "version": "prior to 4.2.3-p2"
            }
          ]
        },
        {
          "product": "EC-CUBE 4.3 series",
          "vendor": "EC-CUBE CO.,LTD.",
          "versions": [
            {
              "status": "affected",
              "version": "prior to 4.3.1-p1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "4.0"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-288",
              "description": "Authentication Bypass Using an Alternate Path or Channel",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-05T05:31:35.025Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "url": "https://www.ec-cube.net/info/weakness/20260209/index.php"
        },
        {
          "url": "https://jvn.jp/en/jp/JVN63765888/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2026-30777",
    "datePublished": "2026-03-05T05:31:35.025Z",
    "dateReserved": "2026-03-04T22:26:32.318Z",
    "dateUpdated": "2026-03-06T18:19:20.427Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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JVNDB-2026-000033

CVE-2026-30777 (GCVE-0-2026-30777)

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