CVE-2020-3937Network attack vector

Unauthenticated database file access via SQL injection

Published Feb 4, 2020 · Updated Sep 16, 2024

SQL injection in SysJust Syuan-Gu-Da-Shih 20191223 and earlier allows remote attackers to access database files via crafted requests. The published advisories do not identify the vulnerable endpoint, parameter, or SQL statement; they state only that untrusted input reaches unwanted database queries. No authentication or user interaction is required, and successful exploitation exposes arbitrary files accessible through the database.

CVSS severity8.1
High
EPSS probability1.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in SysJust Syuan-Gu-Da-Shih 20191223 and earlier allows remote attackers to access database files via crafted requests. The published advisories do not identify the vulnerable endpoint, parameter, or SQL statement; they state only that untrusted input reaches unwanted database queries. No authentication or user interaction is required, and successful exploitation exposes arbitrary files accessible through the database.

The record

CVE
CVE-2020-3937
Published
Feb 4, 2020
Updated
Sep 16, 2024
Vendor
SysJust
Product
Syuan-Gu-Da-Shih
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 4, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=0 <=20191223

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SysJust · Syuan-Gu-Da-Shihversion=0 <=20191223

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
8.1TWCERT/CCCVSS:3.1/AV:N/AC:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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