How severe is CVE-2023-31820?

CVE-2023-31820 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-31820 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31820?

CVE-2023-31820 affects Shizutetsu Shizutetsu Store. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31820?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-31820 published?

CVE-2023-31820 was published on 2023-07-13 and last updated on 2026-07-05.

CVE-2023-31820

CVE-2023-31820 is a high-severity vulnerability in Shizutetsu Shizutetsu Store with a CVSS 3.x base score of 7.5. 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-311.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-311
Affected product: Shizutetsu Shizutetsu Store
Published: 2023-07-13
Last modified: 2026-07-05

Description

An issue found in Shizutetsu Store v.13.6.1 allows a remote attacker to gain access to sensitive information via the channel access token in the miniapp function.

Frequently asked questions

What is CVE-2023-31820?: An issue found in Shizutetsu Store v.13.6.1 allows a remote attacker to gain access to sensitive information via the channel access token in the miniapp function.
How severe is CVE-2023-31820?: CVE-2023-31820 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-31820 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31820?: CVE-2023-31820 affects Shizutetsu Shizutetsu Store. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-31820?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-31820 published?: CVE-2023-31820 was published on 2023-07-13 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:a:shizutetsu:shizutetsu_store:13.6.1:*:*:*:*:*:*:*

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