{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19852","assignerOrgId":"cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e","state":"PUBLISHED","assignerShortName":"twcert","dateReserved":"2026-08-14T09:35:03.910Z","datePublished":"2026-08-24T03:35:01.364Z","dateUpdated":"2026-08-24T16:49:20.971Z"},"containers":{"cna":{"providerMetadata":{"orgId":"cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e","shortName":"twcert","dateUpdated":"2026-08-24T03:35:01.364Z"},"title":"CyberTutor｜NewSiteServer (NSS)  - Arbitrary File Upload","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-434","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","type":"CWE"}]}],"affected":[{"vendor":"CyberTutor","product":"NewSiteServer (NSS)","versions":[{"status":"affected","version":"all","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>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.</p>"}]}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-11116-2c1d8-1.html","tags":["third-party-advisory"]},{"url":"https://www.twcert.org.tw/en/cp-139-11120-64c52-2.html","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseSeverity":"MEDIUM","baseScore":6.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}},{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"ACTIVE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.1,"vectorString":"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"}}],"solutions":[{"lang":"en","value":"Contact the vendor to take remedial measures","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Contact the vendor to take remedial measures</p>"}]}],"source":{"advisory":"TVN-202608002","discovery":"EXTERNAL"},"x_generator":{"engine":"TWCERT TVN Workbench"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-24T16:47:29.850770Z","id":"CVE-2026-19852","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-24T16:49:20.971Z"}}]}}