CVE-2018-19942

Cross-site Scripting Vulnerability in File Station

MEDIUM

6.1

CVSS Score

Published: April 16, 2021 at 01:10 AM UTC

Updated: June 17, 2026 at 01:50 AM UTC

3 products affected across 1 vendorQTSQuTS heroQuTScloud

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Severity

MEDIUM6.1

Exploit prediction

EPSS 0.7%

Description

A cross-site scripting (XSS) vulnerability has been reported to affect earlier versions of File Station. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions: QTS 4.5.2.1566 build 20210202 (and later) QTS 4.5.1.1456 build 20201015 (and later) QTS 4.3.6.1446 build 20200929 (and later) QTS 4.3.4.1463 build 20201006 (and later) QTS 4.3.3.1432 build 20201006 (and later) QTS 4.2.6 build 20210327 (and later) QuTS hero h4.5.1.1472 build 20201031 (and later) QuTScloud c4.5.4.1601 build 20210309 (and later) QuTScloud c4.5.3.1454 build 20201013 (and later)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

QTS · Qnap

95%

v < 4.2.6v < 4.2.6 build 20210327v < 4.3.3.1432 build 20201006v < 4.3.4.1463 build 20201006v < 4.3.6.1446 build 20200929v < 4.5.1.1456 build 20201015v < 4.5.2.1566 build 202102024.3.5 ≤ v < 4.3.64.4.0 ≤ v < 4.5.14.2.6 4.2.6 build_20170517 4.2.6 build_20190322 4.2.6 build_20190730 4.2.6 build_20190921 4.2.6 build_20191107 4.2.6 build_20200109 4.2.6 build_20200421 4.2.6 build_20200611 4.2.6 build_20200821 4.3.3 4.3.3.0095 4.3.3.0096 4.3.3.0136 4.3.3.0154 4.3.3.0174 4.3.3.0188 4.3.3.0210 4.3.3.0229 4.3.3.0238 4.3.3.0262 4.3.3.0299 4.3.3.0351 4.3.3.0353 4.3.3.0361 4.3.3.0369 4.3.3.0378 4.3.3.0396 4.3.3.0404 4.3.3.0416 4.3.3.0418 4.3.3.0448 4.3.3.0514 4.3.3.0546 4.3.3.0570 4.3.3.0868 4.3.3.0998 4.3.3.1051 4.3.3.1098 4.3.3.1161 4.3.3.1252 4.3.3.1315 4.3.3.1386 4.3.4 4.3.4.0358 4.3.4.0358 beta1 4.3.4.0370 4.3.4.0370 beta1 4.3.4.0372 4.3.4.0372 beta1 4.3.4.0374 4.3.4.0374 beta1 4.3.4.0387 4.3.4.0387 beta2 4.3.4.0411 4.3.4.0416 4.3.4.0427 4.3.4.0434 4.3.4.0435 4.3.4.0451 4.3.4.0483 4.3.4.0486 4.3.4.0506 4.3.4.0516 4.3.4.0526 4.3.4.0551 4.3.4.0557 4.3.4.0561 4.3.4.0569 4.3.4.0593 4.3.4.0597 4.3.4.0604 4.3.4.0899 4.3.4.1029 4.3.4.1082 4.3.4.1190 4.3.4.1282 4.3.4.1368 4.3.4.1417 4.3.6 4.3.6.0895 4.3.6.0907 4.3.6.0923 4.3.6.0944 4.3.6.0959 4.3.6.0979 4.3.6.0993 4.3.6.1013 4.3.6.1033 4.3.6.1070 4.3.6.1154 4.3.6.1218 4.3.6.1263 4.3.6.1286 4.3.6.1333 4.3.6.1411 4.5.1 4.5.2

Affected range stops below 4.2.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.2.6 build 20210327, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.3.1432 build 20201006, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.4.1463 build 20201006, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.6.1446 build 20200929, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.5.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.5.1.1456 build 20201015, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.5.2.1566 build 20210202, so it looks safe — our inference, not a vendor statement

QuTS hero · Qnap

95%

v < h4.5.1v < h4.5.1.1472 build 20201031h4.5.1

Affected range stops below h4.5.1, so it looks safe — our inference, not a vendor statement

Affected range stops below h4.5.1.1472 build 20201031, so it looks safe — our inference, not a vendor statement

QuTScloud · Qnap

95%

v < c4.5.3v < c4.5.3.1454 build 20201013v < c4.5.4.1601 build 20210309c4.5.3 c4.5.4

Affected range stops below c4.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below c4.5.3.1454 build 20201013, so it looks safe — our inference, not a vendor statement

Affected range stops below c4.5.4.1601 build 20210309, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.qnap.com/zh-tw/security-advisory/qsa-21-04

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.qnap.com/zh-tw/security-advisory/qsa-21-04

CVSS

6.1MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-79CWE-80

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