ACTIVELY EXPLOITED

CVE-2018-19953: QNAP NAS File Station Cross-Site Scripting Vulnerability

Facts
VendorQNAP
ProductNetwork Attached Storage (NAS)
Actively exploitedYes
Added to CISA KEV24 May 2022
CISA federal deadline14 Jun 2022
Ransomware useKnown
Weakness (CWE)CWE-79, CWE-80

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

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

SOURCES

Other QNAP flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.