CVE-2026-103671

MEDIUMCVSS 5.3/10EPSS 0.22%

Last modified

CVE-2026-103671 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
EC-CUBE CO.,LTD.AmazonPay V2 Plugin (4.0/4.1 series)>= v1.1.7, <= v1.1.12
EC-CUBE CO.,LTD.AmazonPay V2 Plugin (4.0/4.1 series)>= v1.0.0, <= 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, <= v4.3.1
EC-CUBE CO.,LTD.AmazonPay V2 Plugin (4.2/4.3 series)>= v4.2.0, <= v4.2.2
EC-CUBE CO.,LTD.AmazonPay Plugin (4.0 series)<= v1.3.0

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-103671?
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.
How severe is CVE-2026-103671?
CVE-2026-103671 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-103671?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST