CVE-2018-19943

HighActively exploited (CISA KEV)Known to be used in ransomware campaigns

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

SeverityHigh
CVSS8.0
Exploit probability—
ProductQNAP Network Attached Storage (NAS)
PublishedOct 28, 2020
First seenOct 28, 2020
Added to KEVMay 24, 2022

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: Jun 14, 2022
Update
  • qnap qts4.2.6, 4.3.3.1252, 4.3.4.1282, 4.3.6.1263, 4.4.1.1261, 4.4.2.1270 or later

Affected products

ProductAffected versionsFixed in
qnap qtsv < 4.2.6, 4.3.1.0013 ≤ v < 4.3.3.1252, 4.3.4 ≤ v < 4.3.4.1282, 4.3.6 ≤ v < 4.3.6.1263, 4.4.0 ≤ v < 4.4.1.1261, 4.4.2 ≤ v < 4.4.2.1270, 4.2.64.2.6, 4.3.3.1252, 4.3.4.1282, 4.3.6.1263, 4.4.1.1261, 4.4.2.1270

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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