CVE-2026-2684Network attack vector

Unauthenticated file upload via unchecked File input

Published Feb 18, 2026 · Updated Feb 18, 2026

Unrestricted file upload in Tsinghua Unigroup Electronic Archives System 3.2.210802(62532) allows remote attackers to upload arbitrary files. The /Archive/ErecordManage/uploadFile.html endpoint accepts attacker-controlled File input without restricting dangerous file types. No authentication or user interaction is required; successful requests place attacker-supplied content on the server, while code execution depends on server-side processing of the uploaded type.

CVSS severity9.8
Critical
EPSS probability0.49%
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 Tsinghua Unigroup Electronic Archives System 3.2.210802(62532) allows remote attackers to upload arbitrary files. The /Archive/ErecordManage/uploadFile.html endpoint accepts attacker-controlled File input without restricting dangerous file types. No authentication or user interaction is required; successful requests place attacker-supplied content on the server, while code execution depends on server-side processing of the uploaded type.

The record

CVE
CVE-2026-2684
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
Zhejiang Zoneland Zongheng Network Technology Co., Ltd.
Product
紫光电子档案管理系统
Classifications
CWE-284, CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 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=3.2.210802(62532)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zhejiang Zoneland Zongheng Network Technology Co., Ltd. · 紫光电子档案管理系统version=3.2.210802(62532)

Published CVSS scores

7.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5VulDB CNAAV:N/AC:L/Au:N/C:P/I:P/A:P

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-284Improper Access Control
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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