CVE-2026-19852 - Vulnerability Details - OpenCVE

NewSiteServer (NSS) developed by CyberTutor has an Arbitrary File Upload vulnerability. Unauthenticated remote attackers can upload arbitrary files, including malicious HTML files, thereby achieving effects similar to cross-site scripting.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Cybertutor	New Site Server

No data.

No data.

References

Link	Providers
https://www.twcert.org.tw/en/cp-139-11120-64c52-2.html
https://www.twcert.org.tw/tw/cp-132-11116-2c1d8-1.html

History

Mon, 24 Aug 2026 21:15:00 +0000

Type	Values Removed	Values Added
First Time appeared		Cybertutor Cybertutor new Site Server
Vendors & Products		Cybertutor Cybertutor new Site Server

Mon, 24 Aug 2026 04:00:00 +0000

Type	Values Removed	Values Added
Description		NewSiteServer (NSS) developed by CyberTutor has an Arbitrary File Upload vulnerability. Unauthenticated remote attackers can upload arbitrary files, including malicious HTML files, thereby achieving effects similar to cross-site scripting.
Title		CyberTutor｜NewSiteServer (NSS) - Arbitrary File Upload
Weaknesses		CWE-434
References		https://www.twcert.org.tw/en/cp-139-11120-64c52-2.html https://www.twcert.org.tw/tw/cp-132-11116-2c1d8-1.html
Metrics		cvssV3_1 `{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}` cvssV4_0 `{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: twcert

Published: 2026-08-24T03:35:01.364Z

Updated: 2026-08-24T16:49:20.971Z

Reserved: 2026-08-14T09:35:03.910Z

Link: CVE-2026-19852

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2026-08-24T04:16:57.517

Modified: 2026-08-26T16:40:21.650

Link: CVE-2026-19852

Redhat

No data.

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