How severe is CVE-2018-0657?

CVE-2018-0657 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-0657 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0657?

CVE-2018-0657 primarily affects Ec-cube Ec-cube Payment Module. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0657?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-0657 published?

CVE-2018-0657 was published on 2018-09-07 and last updated on 2026-06-17.

CVE-2018-0657

CVE-2018-0657 is a medium-severity vulnerability in Ec-cube Ec-cube Payment Module with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ec-cube Ec-cube Payment Module
Published: 2018-09-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-0657?: CVE-2018-0657 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-0657 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0657?: CVE-2018-0657 primarily affects Ec-cube Ec-cube Payment Module. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0657?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-0657 published?: CVE-2018-0657 was published on 2018-09-07 and last updated on 2026-06-17.

References

http://jvn.jp/en/jp/JVN06372244/index.html

Affected products (2)

cpe:2.3:a:ec-cube:ec-cube_payment_module:*:*:*:*:*:*:*:*
cpe:2.3:a:gmo-pg:gmo-pg_payment_module:*:*:*:*:*:*:*:*

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