{"id":"CVE-2018-19943","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-19943","generatedAt":"2026-10-29T02:04:50.876Z","title":"QNAP NAS File Station Cross-Site Scripting Vulnerability","description":"If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed these issues in the following QTS versions. QTS 4.4.2.1270 build 20200410 and later QTS 4.4.1.1261 build 20200330 and later QTS 4.3.6.1263 build 20200330 and later QTS 4.3.4.1282 build 20200408 and later QTS 4.3.3.1252 build 20200409 and later QTS 4.2.6 build 20200421 and later","published":"2020-10-28T18:15:13.000Z","lastModified":"2026-08-13T05:17:17.000Z","status":"Analyzed","sourceIdentifier":"security@qnapsecurity.com.tw","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79","CWE-80"],"affected":["qnap/qts"],"epss":{"score":0.22682,"percentile":0.97711,"date":"2026-10-27","history":[{"date":"2026-09-24","score":0.21476,"percentile":0.97532},{"date":"2026-10-22","score":0.22682,"percentile":0.9772}]},"kev":{"listed":true,"dateAdded":"2022-05-24","dueDate":"2022-06-14","knownRansomwareCampaignUse":"Known","notes":"Apply updates per vendor instructions.\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-19943"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://www.qnap.com/zh-tw/security-advisory/qsa-20-01","tags":["Vendor Advisory"],"source":"security@qnapsecurity.com.tw"},{"url":"https://www.qnap.com/zh-tw/security-advisory/qsa-20-01","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19943","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-19943","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}