CVE-2026-19852

CyberTutor|NewSiteServer (NSS) - Arbitrary File Upload

Published Aug 24, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Contact the vendor to take remedial measures

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
twcert
Published
Updated
Aug 24, 2026, 4:49 PM
Reserved
Aug 14, 2026, 9:35 AM
Status
Deferred
Published
Aug 24, 2026, 4:16 AM
Modified
Oct 12, 2026, 4:10 PM