Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-accessible upload requires only a low-privileged account; no scope change as impact is confined to the vulnerable server itself.
Primary rating from Vendor (twcert).
CVSS VectorVendor: twcert
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
Official Document Management System developed by 2100 Technology has an Arbitrary File Upload vulnerability, allowing authenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.
AnalysisAI
Arbitrary file upload in 2100 Technology's Official Document Management System (all versions before 5.0.105) enables authenticated remote attackers to upload and execute web shell backdoors, achieving full arbitrary code execution on the underlying server. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L) confirms network-accessible exploitation requiring only a low-privileged account, with total impact across confidentiality, integrity, and availability. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated account in the Official Document Management System (PR:L per CVSS 4.0 vector) - anonymous or unauthenticated exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.7 with total VC/VI/VA impact accurately reflects the severity of post-exploitation access, but several signals moderate the realistic threat level. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with a valid low-privileged account authenticates to the document management portal and uses the document upload feature to submit a file with a web shell payload (e.g., a PHP file named with a permitted extension or no extension validation in place). The server stores the file in a web-accessible path and the attacker retrieves it via a direct HTTP request, triggering server-side execution of the shell and gaining interactive OS-level command access. … |
| Remediation | The primary remediation is to upgrade to Official Document Management System version 5.0.105 or later, which includes the vendor-released fix per the TWCERT advisories at https://www.twcert.org.tw/tw/cp-132-11108-7b14c-1.html and https://www.twcert.org.tw/en/cp-139-11109-82377-2.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct a complete inventory of all 2100 Technology Document Management System deployments and document their current versions to identify affected instances. …
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Same technique File Upload
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-60077
GHSA-fw5p-7qj4-6x7r