CVE-2026-102454

DigiWin｜EasyFlow .NET - Arbitrary File Upload

Published Sep 30, 2026 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed

Description

EasyFlow .NET developed by Digiwin has an Arbitrary File Upload vulnerability. Privileged remote attackers can upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

Analysis

Technical impact

The vulnerability is an arbitrary file upload flaw that allows privileged remote attackers to place and run web shell backdoors on the server, providing them with the ability to execute arbitrary code.

Affected Systems

The software affected is DigiWin’s EasyFlow .NET. The CVE does not list specific release numbers, but a patch was issued after April 16 2026. Users should verify they are running a version older than the patched release.

Risk and Exploitability

The CVSS score of 8.6 indicates high severity, and the lack of an EPSS score means the exact exploitation probability is unclear. The vulnerability is not yet in the CISA KEV catalog. Attackers would need remote access to upload files, implying that an exposed web application that allows file uploads could be leveraged. Since the flaw permits execution of arbitrary code, the impact is considerable if exploited.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

DigiWin

EasyFlow .NET

unaffected

Version	Status	Constraints
`6.1.*`	affected	—
`6.6`	affected	≤ 6.6.19
`8.1`	affected	≤ 8.1.5

No data.

Vendor Product Versions

Digiwin

Easyflow .net

Version	Status	Scheme	Platform
`[6.1.0,6.2.0)`	affected	semver	—
`[6.6,6.6.19]`	affected	generic	—
`[8.1,8.1.5]`	affected	generic	—

Remediation

Vendor Solution

Update to the patch version released after April 16, 2026.

OpenCVE Recommended Actions

Update EasyFlow .NET to the patch version released after April 16 2026.
If an immediate update is not possible, disable or heavily restrict the file upload feature, limiting accepted file types and ensuring uploaded content cannot be executed.
Monitor the web server for unexpected files or processes that may indicate a web shell has been deployed.

Generated by OpenCVE AI on September 30, 2026 at 12:04 UTC.

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.562% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://www.twcert.org.tw/en/cp-139-11241-b7eef-2.html
https://www.twcert.org.tw/tw/cp-132-11240-0fa1b-1.html

History

Sep 30, 2026 5:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Sep 30, 2026 12:30 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Digiwin Digiwin easyflow .net
Vendors & Products		Digiwin Digiwin easyflow .net

Sep 30, 2026 8:30 AM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		EasyFlow .NET developed by Digiwin has an Arbitrary File Upload vulnerability. Privileged remote attackers can upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.
Title		DigiWin｜EasyFlow .NET - Arbitrary File Upload
Weaknesses		CWE-434
References		https://www.twcert.org.tw/en/cp-139-11241-b7eef-2.html https://www.twcert.org.tw/tw/cp-132-11240-0fa1b-1.html
Metrics		cvssV3_1 `{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}` cvssV4_0 `{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}`