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[ CVE-2018-19953 · Published 28 Oct 2020 ]

QNAP NAS File Station Cross-Site Scripting Vulnerability

Exploited · CISA KEV CVSS 6.1 EPSS 31%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-05-24
  • Known to be used in ransomware campaigns
  • EPSS: 31% chance of exploitation in the next 30 days (higher than 98% of CVEs)

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 14 Jun 2022): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References