CVE-2020-10507Network attack vector

Remote code execution via unrestricted file upload

Published Apr 15, 2020 · Updated Sep 17, 2024

Unrestricted file upload in ALLE INFORMATION CO., LTD. School Manage System before 2020 allows remote attackers to execute code on the host. The file upload filter accepts files of any format instead of restricting dangerous server-executable content. No authentication or user interaction is required, and a crafted upload grants access to the hosting machine.

CVSS severity9.8
Critical
EPSS probability1.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in ALLE INFORMATION CO., LTD. School Manage System before 2020 allows remote attackers to execute code on the host. The file upload filter accepts files of any format instead of restricting dangerous server-executable content. No authentication or user interaction is required, and a crafted upload grants access to the hosting machine.

The record

CVE
CVE-2020-10507
Published
Apr 15, 2020
Updated
Sep 17, 2024
Vendor
ALLE INFORMATION CO., LTD.
Product
School Manage System
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before 2020

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ALLE INFORMATION CO., LTD. · School Manage Systemversion=before 2020

Published CVSS scores

7.5NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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