{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "AmazonPay V2 Plugin (4.0/4.1 series)", "vendor": "EC-CUBE CO.,LTD.", "versions": [{"lessThanOrEqual": "v1.1.12", "status": "affected", "version": "v1.1.7", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "AmazonPay V2 Plugin (4.0/4.1 series)", "vendor": "EC-CUBE CO.,LTD.", "versions": [{"lessThanOrEqual": "v1.1.6", "status": "affected", "version": "v1.0.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "AmazonPay V2 Plugin (4.2/4.3 series, Bundle Edition)", "vendor": "EC-CUBE CO.,LTD.", "versions": [{"status": "affected", "version": "v4.3.1"}]}, {"defaultStatus": "unaffected", "product": "AmazonPay V2 Plugin (4.2/4.3 series)", "vendor": "EC-CUBE CO.,LTD.", "versions": [{"lessThanOrEqual": "v4.3.1", "status": "affected", "version": "v4.2.3", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "AmazonPay V2 Plugin (4.2/4.3 series)", "vendor": "EC-CUBE CO.,LTD.", "versions": [{"lessThanOrEqual": "v4.2.2", "status": "affected", "version": "v4.2.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "product": "AmazonPay Plugin (4.0 series)", "vendor": "EC-CUBE CO.,LTD.", "versions": [{"lessThanOrEqual": "v1.3.0", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "vultures@jpcert.or.jp"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "External control of assumed-Immutable web parameter issue exists in EC-CUBE plugin (for EC-CUBE 4 series) \"AmazonPay Plugin\". If exploited, the user may be redirected to an arbitrary website during the ordering process. As a result, user's account information may be obtained."}], "id": "CVE-2026-103671", "lastModified": "2026-10-15T20:39:32.067", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "vultures@jpcert.or.jp", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "vultures@jpcert.or.jp", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-103671", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-14T14:15:14.055640Z", "version": "2.0.3"}}]}, "published": "2026-10-14T09:17:22.030", "references": [{"source": "vultures@jpcert.or.jp", "url": "https://jvn.jp/en/jp/JVN43511918/"}, {"source": "vultures@jpcert.or.jp", "url": "https://www.ec-cube.net/news/detail.php?news_id=490"}], "sourceIdentifier": "vultures@jpcert.or.jp", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-472"}], "source": "vultures@jpcert.or.jp", "type": "Secondary"}]}