Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-30777
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 19:40 UTC · Revision 1
Source evidence
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.
osv:CVE-2026-30777
Complete source record
{
"id": "34fa41ea6694eb3bd7b3a9cfaf3fb9e550bb6e30dd4766f012f826bf92411f2b",
"url": "https://osv.dev/vulnerability/CVE-2026-30777",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-30777",
"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.",
"evidence": "osv:CVE-2026-30777",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-30777",
"aliases": [
"CVE-2026-30777"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/ec-cube/ec-cube",
"type": "GIT",
"events": [
{
"introduced": "5d02dde61f824fb9e264d003f59afc4663811567"
},
{
"fixed": "710b64ce96786770fe59ba8255ff16925171f172"
},
{
"introduced": "0fbb7b3a340c75f2860123d5e01d706f8a15127b"
},
{
"fixed": "daed16e5da3c6847b232af24b06d76d55d8cbd42"
},
{
"introduced": "c97204439000a877566bc232cb768862d3bfcbb0"
},
{
"fixed": "cd8fa9826ddee6757bd2e952c9db4023e856c156"
},
{
"introduced": "710b64ce96786770fe59ba8255ff16925171f172"
},
{
"last_affected": "cd8fa9826ddee6757bd2e952c9db4023e856c156"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:*:-:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.0"
},
{
"fixed": "4.1.2"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:*:-:*:*:*:*:*:*",
"range": [
{
"introduced": "4.2.0"
},
{
"fixed": "4.2.3"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:*:-:*:*:*:*:*:*",
"range": [
{
"introduced": "4.3.0"
},
{
"fixed": "4.3.1"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.1.2:-:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.2-NA"
},
{
"last_affected": "4.1.2-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.1.2:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.2-p1"
},
{
"last_affected": "4.1.2-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.1.2:p2:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.2-p2"
},
{
"last_affected": "4.1.2-p2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.1.2:p3:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.2-p3"
},
{
"last_affected": "4.1.2-p3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.1.2:p4:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.2-p4"
},
{
"last_affected": "4.1.2-p4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.2.3:-:*:*:*:*:*:*",
"range": [
{
"introduced": "4.2.3-NA"
},
{
"last_affected": "4.2.3-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.2.3:p1:*:*:*:*:*:*",
"range": [
{
"introduced": "4.2.3-p1"
},
{
"last_affected": "4.2.3-p1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:ec-cube:ec-cube:4.3.1:-:*:*:*:*:*:*",
"range": [
{
"introduced": "4.3.1-NA"
},
{
"last_affected": "4.3.1-NA"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"4.1.2-NA",
"4.1.2-p1",
"4.1.2-p2",
"4.1.2-p3",
"4.1.2-p4",
"4.2.3-NA",
"4.2.3-p1",
"4.3.1-NA",
"4.3.0",
"co/4.2-20231026",
"4.2.3-20231023",
"co/4.2-20231005",
"4.2.3-20231002",
"co/4.2-20230921",
"4.2.2-20230616",
"4.2.2",
"co/4.2-20230608",
"4.2.2-20230606",
"co/4.2-20230511",
"4.2.1",
"co/4.2-20230222",
"co/4.2-20230216",
"4.2.0",
"co/4.2-20230119",
"4.2.1-20230116",
"co/4.2-20221215",
"co/4.2-20221027",
"co/4.2-20221020",
"co/4.2-20221013",
"co/4.2-20221006",
"co/4.1-20220210",
"4.1.2-20220128",
"4.1.2-20220203",
"co/4.1-20211202",
"4.1.1-20211130",
"4.1.1",
"co/4.1-20211125",
"co/4.1-20211118",
"co/4.1-20211111",
"4.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30777.json"
}
}
],
"modified": "2026-10-28T02:30:31.717577216Z",
"provider": "osv",
"references": [
"https://jvn.jp/en/jp/JVN63765888/",
"https://www.ec-cube.net/info/weakness/20260209/index.php",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30777.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-30777"
],
"provider_metadata": {
"cwe_ids": [
"CWE-288"
],
"cna_assigner": "jpcert",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"fixed": "4.1.2-p5"
},
{
"fixed": "4.2.3-p2"
},
{
"fixed": "4.3.1-p1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "VersionTextExtraction"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30777.json"
}
},
"related_cves": [
{
"value": "CVE-2026-30777",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 498776,
"published_at": "2026-03-05T05:31:35.025+00:00"
}