How severe is CVE-2026-2944?

CVE-2026-2944 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-2944 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2944?

CVE-2026-2944 affects Tosei-corporation Online Store Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2944?

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.

Does CVE-2026-2944 have an EU (EUVD) identifier?

Yes. CVE-2026-2944 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7688.

When was CVE-2026-2944 published?

CVE-2026-2944 was published on 2026-02-22 and last updated on 2026-06-17.

CVE-2026-2944

CVE-2026-2944 is a high-severity vulnerability in Tosei-corporation Online Store Management System with a CVSS 3.x base score of 7.3. 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-77.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7688
Weakness: CWE-77
Affected product: Tosei-corporation Online Store Management System
Published: 2026-02-22
Last modified: 2026-06-17

Description

A security flaw has been discovered in Tosei Online Store Management System ネット店舗管理システム 1.01. Affected is the function system of the file /cgi-bin/monitor.php of the component HTTP POST Request Handler. Performing a manipulation of the argument DevId results in os command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-2944?: A security flaw has been discovered in Tosei Online Store Management System ネット店舗管理システム 1.01. Affected is the function system of the file /cgi-bin/monitor.php of the component HTTP POST Request Handler. Performing a manipulation of the argument DevId results in os command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-2944?: CVE-2026-2944 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-2944 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2944?: CVE-2026-2944 affects Tosei-corporation Online Store Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2944?: 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.
Does CVE-2026-2944 have an EU (EUVD) identifier?: Yes. CVE-2026-2944 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7688.
When was CVE-2026-2944 published?: CVE-2026-2944 was published on 2026-02-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tosei-corporation:online_store_management_system:1.01:*:*:*:*:*:*:*

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