Answer in brief
CVE-2026-103671 records a Medium severity (CVSS 5.3) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps EC-CUBE CO.,LTD./AmazonPay Plugin (4.0 series) (generic), EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.0/4.1 series) (generic), EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.0/4.1 series) (generic), EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.2/4.3 series) (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps EC-CUBE CO.,LTD./AmazonPay Plugin (4.0 series) (generic), EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.0/4.1 series) (generic), EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.0/4.1 series) (generic), EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.2/4.3 series) (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| EC-CUBE CO.,LTD./AmazonPay Plugin (4.0 series)generic | >=0 <=v1.3.0 | Not reported |
| EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.0/4.1 series)generic | >=v1.1.7 <=v1.1.12 | Not reported |
| EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.0/4.1 series)generic | >=v1.0.0 <=v1.1.6 | Not reported |
| EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.2/4.3 series)generic | >=v4.2.3 <=v4.3.1 | Not reported |
| EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.2/4.3 series)generic | >=v4.2.0 <=v4.2.2 | Not reported |
| EC-CUBE CO.,LTD./AmazonPay V2 Plugin (4.2/4.3 series, Bundle Edition)generic | v4.3.1 | Not reported |
Published upstream
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 14, 2026
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.
Quoted source text, attributed separately from HOL analysis.