CWE
79 749 80
Advisory Published
Updated

CVE-2020-2503: Stored cross-site scripting vulnerability in QES

First published: Thu Dec 24 2020(Updated: )

If exploited, this stored cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.

Credit: security@qnapsecurity.com.tw

Affected SoftwareAffected VersionHow to fix
Qnap QES<2.1.1
Qnap QES=2.1.1
Qnap QES=2.1.1-build_20200211
Qnap QES=2.1.1-build_20200303
Qnap QES=2.1.1-build_20200319
Qnap QES=2.1.1-build_20200424
Qnap QES=2.1.1-build_20200515
Qnap QES=2.1.1-build_20200811

Remedy

QNAP has already fixed these issues in QES 2.1.1 Build 20201006 and later.

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Frequently Asked Questions

  • What is the severity of CVE-2020-2503?

    CVE-2020-2503 is a stored cross-site scripting vulnerability that can have a high impact if exploited.

  • How do I fix CVE-2020-2503?

    To fix CVE-2020-2503, upgrade to QES version 2.1.1 Build 20201006 or later.

  • What software is affected by CVE-2020-2503?

    CVE-2020-2503 affects all QNAP QES versions prior to 2.1.1 Build 20201006.

  • What could happen if CVE-2020-2503 is exploited?

    If exploited, CVE-2020-2503 could allow remote attackers to inject malicious code into the File Station.

  • Is there a patch available for CVE-2020-2503?

    Yes, a patch to resolve CVE-2020-2503 is included in QES versions 2.1.1 Build 20201006 and later.

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