THREATPORT/VULNERABILITY/CVE-2026-2944
HIGH SEVERITY

CVE-2026-2944

Online Store Management System vulnerability

CVSS
7.3
EPSS
6.1%
EPSS pct
93th
Exploited
No known
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.
Affected vendor
Tosei Corporation
Affected product
Online Store Management System
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness type (CWE)
Published
2026-02-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity, low impact to availability.

Its EPSS score of 6.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2026-2944

  • Confirm whether Tosei Corporation Online Store Management System is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2026-2944.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2026-2944

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2026-2944 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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