CVE-2020-36194

XSS Vulnerability in QTS and QuTS heroCommand Injection Vulnerabilities in QTS and QuTS hero

MEDIUM

6.1

CVSS Score

Published: July 1, 2021 at 02:00 AM UTC

Updated: June 17, 2026 at 03:14 AM UTC

2 products affected across 1 vendorQTSQuTS hero

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Severity

MEDIUM6.1

Exploit prediction

EPSS 0.6%

Description

An XSS vulnerability has been reported to affect QNAP NAS running QTS and QuTS hero. If exploited, this vulnerability allows attackers to inject malicious code. This issue affects: QNAP Systems Inc. QTS versions prior to 4.5.2.1566 Build 20210202. QNAP Systems Inc. QuTS hero versions prior to h4.5.2.1638 build 20210414. This issue does not affect: QNAP Systems Inc. QTS 4.5.3.

Affected

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

QTS · Qnap

95%

v < 4.5.2.1566v < 4.5.2.1566 Build 20210202

Affected range stops below 4.5.2.1566, 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

Vendor states this is fixed in 4.5.3 (unaffected)

QuTS hero · Qnap

95%

v < h4.5.2.1638v < h4.5.2.1638 build 20210414

Affected range stops below h4.5.2.1638, so it looks safe — our inference, not a vendor statement

Affected range stops below h4.5.2.1638 build 20210414, 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-21-32

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.qnap.com/zh-tw/security-advisory/qsa-21-32

CVSS

6.1MEDIUMqnap

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-79

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