{"affected": [{"affectedData": [{"platforms": ["build 20200302"], "product": "QTS", "vendor": "QNAP Systems Inc.", "versions": [{"lessThan": "4.4.2.1231", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"platforms": ["build 20200130"], "product": "QTS", "vendor": "QNAP Systems Inc.", "versions": [{"lessThan": "4.4.1.1201", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"platforms": ["build 20200214"], "product": "QTS", "vendor": "QNAP Systems Inc.", "versions": [{"lessThan": "4.3.6.1218", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"platforms": ["build 20200107"], "product": "QTS", "vendor": "QNAP Systems Inc.", "versions": [{"lessThan": "4.3.4.1190", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"platforms": ["build 20200109"], "product": "QTS", "vendor": "QNAP Systems Inc.", "versions": [{"lessThan": "4.3.3.1161", "status": "affected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "4.2.6", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@qnapsecurity.com.tw"}], "cisaActionDue": "2022-06-14", "cisaExploitAdd": "2022-05-24", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "QNAP NAS File Station Cross-Site Scripting Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*", "matchCriteriaId": "3777F6CC-9189-4BC0-B336-62BA1EFB91A7", "versionEndExcluding": "4.2.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*", "matchCriteriaId": "DCF2E9D3-12C2-4A5A-BC1D-F2C007303805", "versionEndExcluding": "4.3.3.1161", "versionStartIncluding": "4.3.1.0013", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*", "matchCriteriaId": "26B1C1D9-D91E-4C02-87A2-1EDE2AB4B0BF", "versionEndExcluding": "4.3.4.1190", "versionStartIncluding": "4.3.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A213877-D365-46DB-BDA1-4DAA020AF84A", "versionEndExcluding": "4.3.6.1218", "versionStartIncluding": "4.3.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*", "matchCriteriaId": "F902AFED-E51B-42F2-85BD-DB0B19B8C7DB", "versionEndExcluding": "4.4.1.1201", "versionStartIncluding": "4.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*", "matchCriteriaId": "5BF6E081-B28B-4A26-BA59-EB7A66099360", "versionEndExcluding": "4.4.2.1231", "versionStartIncluding": "4.4.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:4.2.6:-:*:*:*:*:*:*", "matchCriteriaId": "2D3B1E3A-C9E9-4BB8-8BFC-AE1258722F85", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:4.2.6:build_20170517:*:*:*:*:*:*", "matchCriteriaId": "8F523E9F-D101-4C29-A624-74E1F3F8CB7D", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:4.2.6:build_20190322:*:*:*:*:*:*", "matchCriteriaId": "1388DBE0-F6BB-44AB-81AC-BFB4E70BE820", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:4.2.6:build_20190730:*:*:*:*:*:*", "matchCriteriaId": "CF3C4461-C1B6-43A1-BA5E-D6658EFD06EE", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:4.2.6:build_20190921:*:*:*:*:*:*", "matchCriteriaId": "A1F11848-6FED-4D58-A177-36D280C0347C", "vulnerable": true}, {"criteria": "cpe:2.3:o:qnap:qts:4.2.6:build_20191107:*:*:*:*:*:*", "matchCriteriaId": "F6259C86-FFDA-40E8-AF0C-33CC8C108DC9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed the issue in the following QTS versions. QTS 4.4.2.1231 on build 20200302; QTS 4.4.1.1201 on build 20200130; QTS 4.3.6.1218 on build 20200214; QTS 4.3.4.1190 on build 20200107; QTS 4.3.3.1161 on build 20200109; QTS 4.2.6 on build 20200109."}, {"lang": "es", "value": "Si es explotada, esta vulnerabilidad de tipo cross-site scripting podr\u00eda permitir a atacantes remotos inyectar c\u00f3digo malicioso. QNAP ya ha corregido el problema en las siguientes versiones de QTS. QTS versi\u00f3n 4.4.2.1231 en build 20200302; QTS versi\u00f3n 4.4.1.1201 en build 20200130; QTS versi\u00f3n 4.3.6.1218 en build 20200214; QTS versi\u00f3n 4.3.4.1190 en build 20200107; QTS versi\u00f3n 4.3.3.1161 en build 20200109; QTS versi\u00f3n 4.2.6 en build 20200109"}], "id": "CVE-2018-19953", "lastModified": "2026-10-01T20:17:17.020", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2018-19953", "options": [{"exploitation": "active"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-13T03:55:37.979267Z", "version": "2.0.3"}}]}, "published": "2020-10-28T18:15:12.740", "references": [{"source": "security@qnapsecurity.com.tw", "tags": ["Vendor Advisory"], "url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.qnap.com/zh-tw/security-advisory/qsa-20-01"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19953"}], "sourceIdentifier": "security@qnapsecurity.com.tw", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-80"}], "source": "security@qnapsecurity.com.tw", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}