CVE-2026-103671
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductAmazonPay V2 Plugin (4.0/4.1 series)
PublishedOct 14, 2026
First seenOct 14, 2026
Weakness typeCWE-472CWE-472
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| EC-CUBE CO.,LTD. AmazonPay V2 Plugin (4.0/4.1 series) | v1.1.7 ≤ v ≤ v1.1.12, v1.0.0 ≤ v ≤ v1.1.6 | — |
| EC-CUBE CO.,LTD. AmazonPay V2 Plugin (4.2/4.3 series, Bundle Edition) | v4.3.1 | — |
| EC-CUBE CO.,LTD. AmazonPay V2 Plugin (4.2/4.3 series) | v4.2.3 ≤ v ≤ v4.3.1, v4.2.0 ≤ v ≤ v4.2.2 | — |
| EC-CUBE CO.,LTD. AmazonPay Plugin (4.0 series) | v ≤ v1.3.0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.