CVE-2026-74845Network attack vector

Authenticated RCE via unchecked upload parameters

Published Aug 17, 2026 · Updated Aug 17, 2026

Arbitrary file upload in Official Document Management System before 5.0.105 allows remote authenticated users to execute code via an uploaded web shell. CHT Security states that certain function parameters are not validated, which lets an authenticated user bypass upload restrictions and submit a backdoor program that the server will execute. Reachability requires valid application access, but successful exploitation yields server-side code execution with the application's privileges.

CVSS severity8.7
High
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in Official Document Management System before 5.0.105 allows remote authenticated users to execute code via an uploaded web shell. CHT Security states that certain function parameters are not validated, which lets an authenticated user bypass upload restrictions and submit a backdoor program that the server will execute. Reachability requires valid application access, but successful exploitation yields server-side code execution with the application's privileges.

The record

CVE
CVE-2026-74845
Published
Aug 17, 2026
Updated
Aug 17, 2026
Vendor
2100 Technology
Product
Official Document Management System
Classifications
CWE-434, CAPEC-650, T1190, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 17, 2026Record 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 <5.0.105

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

2100 Technology · Official Document Management Systemversion=0 <5.0.105

Published CVSS scores

8.7TWCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-650Upload a Web Shell to a Web Server
T1190Exploit Public-Facing Application
T1505.003Web Shell

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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