CVE-2018-0657

Cross-site scripting vulnerability in EC-CUBE Payment Module and GMO-PG Payment Module (PG Multi-Payment Service) for EC-CUBE (EC-CUBE Payment Module (2.12) version 3.5.23 and earlier, EC-CUBE Payment Module (2.11) version 2.3.17 and earlier, GMO-PG Payment Module (PG Multi-Payment Service) (2.12) version 3.5.23 and earlier, and GMO-PG Payment Module (PG Multi-Payment Service) (2.11) version 2.3.17 and earlier) allow an attacker with administrator rights to inject arbitrary web script or HTML via unspecified vectors.

Published: 2018-09-07 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-0657 is rated Low Risk (33.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.52%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-0657

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.39% 0.52% +0.13%
2 2025-08-08 0.51% 0.39% -0.12%
3 2025-03-30 — 0.51% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-0657

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.8 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.7 2.7 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2018-0657

Affected software / configurations for CVE-2018-0657

Vendor Product Version Raw CPE
ec-cube ec-cube_payment_module <= 2.3.17 cpe:2.3:a:ec-cube:ec-cube_payment_module:*:*:*:*:*:*:*:*
gmo-pg gmo-pg_payment_module <= 2.3.17 cpe:2.3:a:gmo-pg:gmo-pg_payment_module:*:*:*:*:*:*:*:*
ec-cube ec-cube_payment_module <= 3.5.23 cpe:2.3:a:ec-cube:ec-cube_payment_module:*:*:*:*:*:*:*:*
gmo-pg gmo-pg_payment_module <= 3.5.23 cpe:2.3:a:gmo-pg:gmo-pg_payment_module:*:*:*:*:*:*:*:*

References for CVE-2018-0657

URL Tags
http://jvn.jp/en/jp/JVN06372244/index.html Third Party Advisory
cvelogic Threat Intelligence