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4 vulnerabilities found for NewSiteServer (NSS) by CyberTutor
CVE-2026-19853 (GCVE-0-2026-19853)
Vulnerability from nvd – Published: 2026-08-24 03:30 – Updated: 2026-08-24 12:51
VLAI
EPSS
VEX
Title
CyberTutor｜NewSiteServer (NSS) - Missing Authentication
Summary
NewSiteServer (NSS) developed by CyberTutor has a Missing Authentication vulnerability. Unauthenticated remote attackers can exploit a specific functionality to send emails to anyone on behalf of the school.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 12:32 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-11117-4f503-1.html | third-party-advisory |
| https://www.twcert.org.tw/en/cp-139-11121-51e56-2.html | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CyberTutor | NewSiteServer (NSS) |
Affected:
all
(custom)
|
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CVE-2026-19852 (GCVE-0-2026-19852)
Vulnerability from nvd – Published: 2026-08-24 03:35 – Updated: 2026-08-24 16:49
VLAI
EPSS
VEX
Title
CyberTutor｜NewSiteServer (NSS) - Arbitrary File Upload
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 16:47 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-11116-2c1d8-1.html | third-party-advisory |
| https://www.twcert.org.tw/en/cp-139-11120-64c52-2.html | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CyberTutor | NewSiteServer (NSS) |
Affected:
all
(custom)
|
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CVE-2026-19852 (GCVE-0-2026-19852)
Vulnerability from cvelistv5 – Published: 2026-08-24 03:35 – Updated: 2026-08-24 16:49
VLAI
EPSS
VEX
Title
CyberTutor｜NewSiteServer (NSS) - Arbitrary File Upload
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 16:47 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-11116-2c1d8-1.html | third-party-advisory |
| https://www.twcert.org.tw/en/cp-139-11120-64c52-2.html | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CyberTutor | NewSiteServer (NSS) |
Affected:
all
(custom)
|
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CVE-2026-19853 (GCVE-0-2026-19853)
Vulnerability from cvelistv5 – Published: 2026-08-24 03:30 – Updated: 2026-08-24 12:51
VLAI
EPSS
VEX
Title
CyberTutor｜NewSiteServer (NSS) - Missing Authentication
Summary
NewSiteServer (NSS) developed by CyberTutor has a Missing Authentication vulnerability. Unauthenticated remote attackers can exploit a specific functionality to send emails to anyone on behalf of the school.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 12:32 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.twcert.org.tw/tw/cp-132-11117-4f503-1.html | third-party-advisory |
| https://www.twcert.org.tw/en/cp-139-11121-51e56-2.html | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| CyberTutor | NewSiteServer (NSS) |
Affected:
all
(custom)
|
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"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
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],
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"descriptions": [
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"description": "CWE-306 Missing Authentication for Critical Function",
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}
],
"providerMetadata": {
"dateUpdated": "2026-08-24T03:30:35.116Z",
"orgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e",
"shortName": "twcert"
},
"references": [
{
"tags": [
"third-party-advisory"
],
"url": "https://www.twcert.org.tw/tw/cp-132-11117-4f503-1.html"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.twcert.org.tw/en/cp-139-11121-51e56-2.html"
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],
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"value": "\u003cp\u003eContact the vendor to take remedial measures.\u003c/p\u003e"
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],
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}
],
"source": {
"advisory": "TVN-202608003",
"discovery": "EXTERNAL"
},
"title": "CyberTutor\uff5cNewSiteServer (NSS) - Missing Authentication",
"x_generator": {
"engine": "TWCERT TVN Workbench"
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}
},
"cveMetadata": {
"assignerOrgId": "cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e",
"assignerShortName": "twcert",
"cveId": "CVE-2026-19853",
"datePublished": "2026-08-24T03:30:35.116Z",
"dateReserved": "2026-08-14T09:35:37.124Z",
"dateUpdated": "2026-08-24T12:51:11.807Z",
"state": "PUBLISHED"
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