PatchSiren cyber security CVE debrief
CVE-2018-19953 QNAP CVE debrief
CVE-2018-19953 is a cross-site scripting vulnerability affecting QNAP NAS File Station. CISA lists it in the Known Exploited Vulnerabilities catalog and marks known ransomware campaign use, so unpatched or exposed QNAP NAS environments should treat remediation as urgent.
- Vendor
- QNAP
- Product
- Network Attached Storage (NAS)
- CVSS
- Unknown
- CISA KEV
- Listed
- Original CVE published
- 2022-05-24
- Original CVE updated
- 2022-05-24
- Advisory published
- 2022-05-24
- Advisory updated
- 2022-05-24
Who should care
QNAP NAS administrators, IT and security teams managing File Station deployments, and incident responders responsible for internet-exposed or business-critical NAS systems.
Technical summary
The vulnerability is identified as a cross-site scripting issue in QNAP NAS File Station. In practical terms, maliciously crafted web content can be handled by the application in a way that results in script execution in a user's browser context. The supplied sources do not provide an affected version range or exploit details, but CISA's KEV listing indicates known exploitation and directs defenders to apply vendor updates.
Defensive priority
Urgent
Recommended defensive actions
- Apply QNAP vendor updates and follow the vendor's remediation instructions as soon as possible.
- Prioritize any internet-exposed NAS or administrative interfaces for immediate patching and verification.
- Restrict File Station and NAS management access to trusted users and networks until remediation is complete.
- Review authentication, access, and application logs for suspicious activity; investigate promptly if compromise is suspected.
Evidence notes
CISA's KEV entry names the issue 'QNAP NAS File Station Cross-Site Scripting Vulnerability,' lists vendor QNAP and product 'Network Attached Storage (NAS),' sets dateAdded to 2022-05-24 with dueDate 2022-06-14, marks 'knownRansomwareCampaignUse' as 'Known,' and says 'Apply updates per vendor instructions.' The official CVE and NVD pages are included as corroborating references.
Official resources
-
CVE-2018-19953 CVE record
CVE.org
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CVE-2018-19953 NVD detail
NVD
-
CISA Known Exploited Vulnerabilities catalog
CISA - Apply updates per vendor instructions.
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Source item URL
cisa_kev
The supplied public records place this vulnerability in CISA's KEV catalog on 2022-05-24, with a remediation due date of 2022-06-14. This debrief uses that record date for timing context and does not infer an earlier discovery date beyond a