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QNAP · Network Attached Storage (NAS)

CVE-2018-19953

QNAP NAS File Station Cross-Site Scripting Vulnerability

Exploited in attacks Used by ransomware Medium 6.1 Attack chance: 31%
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What it is

If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code. QNAP has already fixed the issue in the following QTS versions. QTS 4.4.2.1231 on build 20200302; QTS 4.4.1.1201 on build 20200130; QTS 4.3.6.1218 on build 20200214; QTS 4.3.4.1190 on build 20200107; QTS 4.3.3.1161 on build 20200109; QTS 4.2.6 on build 20200109.

CISA: A cross-site scripting vulnerability affecting QNAP NAS File Station could allow remote attackers to inject malicious code.

What to do

Apply updates per vendor instructions.

Deadline for US federal agencies: June 14, 2022

Added to the CISA list
May 24, 2022
Published
October 28, 2020
Severity
Medium 6.1 CVSS 3.1
Chance of attacks in the next 30 days (EPSS)
31% in the top 1.8% of all known vulnerabilities
Weakness
CWE-79 CWE-80
More details
NVD · CVE.org · CISA
All references (1)

More exploited flaws from QNAP

AddedVulnerabilityProductSeverityAttack chance
May 24, 2022NAS File Station Cross-Site ScriptingCVE-2018-19943used by ransomwareNetwork Attached Storage (NAS)High 8.023%
May 24, 2022NAS File Station Command InjectionCVE-2018-19949used by ransomwareNetwork Attached Storage (NAS)Critical 9.830%
Mar 31, 2022NAS Improper AuthorizationCVE-2021-28799used by ransomwareNetwork Attached Storage (NAS)Critical 10.078%
Dec 21, 2023OS Command InjectionCVE-2023-47565VioStor NVRHigh 8.073%
Sep 8, 2022Externally Controlled ReferenceCVE-2022-27593used by ransomwarePhoto StationCritical 10.088%
Jun 8, 2022Improper Access ControlCVE-2019-7192used by ransomwarePhoto StationCritical 9.888%
Jun 8, 2022Improper Input ValidationCVE-2019-7193used by ransomwareQTSCritical 9.814%
Jun 8, 2022Path TraversalCVE-2019-7194used by ransomwarePhoto StationCritical 9.883%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.