CVE-2018-19943
Cross-site Scripting: Is CVE-2018-19943 real, exploitable, or a false positive? Here's the community verdict.
signals
public sources
Confirmed exploited in the wild. Patch this first, regardless of the base score.
baseline read
auto · not a community verdict
Real — exploited in the wild
CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.
Based on CISA KEV
Confirm or dispute →CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
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
References
Published
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In your experience, is this finding real and exploitable?
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Field notes & remediation
Verdicts are the quick signal. Notes are the evidence and fixes behind them.
- 0
QNAP NAS File Station Cross-Site Scripting Vulnerability — A cross-site scripting vulnerability affecting QNAP NAS File Station could allow remote attackers to inject malicious code. Listed in the CISA KEV catalog (added 2022-05-24) — confirmed exploited in the wild, not theoretical. It is linked to known ransomware campaigns. FIRST EPSS puts the chance of exploitation in the next 30 days at ~18%. Treat it as real and prioritize remediation over triage.
- 0
Required action for QNAP Network Attached Storage (NAS): Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-06-14. After patching, verify the vulnerable path is no longer reachable before closing the finding.
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