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

criticalknown exploitedCVE-2018-19953
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
A cross-site scripting vulnerability affecting QNAP NAS File Station could allow remote attackers to inject malicious code.

CSIRTS triage

vendor: QNAPproduct: NAS File StationCross-site scripting
What
A cross-site scripting vulnerability affecting QNAP NAS File Station could allow remote attackers to inject malicious code.
Who is affected
Deployments of QNAP NAS File Station are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update QNAP NAS File Station to the latest version.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-05-24
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2018-19953

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2018-19953coverage & exploitation statusNVD · CVE.org

Recent advisories for QNAP NAS File

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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