{"cvss":5.3,"datePublished":"2026-10-14T09:17:22.030","dateUpdated":"2026-10-15T20:39:32.067","description":"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","raw":{"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"}]},"severity":"MEDIUM","source":"nvd","title":"External control of assumed-Immutable web parameter issue exists in EC-CUBE plugin (for EC-CUBE 4 series) \"AmazonPay ..."}