CWE
79
Advisory Published
Updated

CVE-2021-21800: XSS

First published: Fri Jul 16 2021(Updated: )

Cross-site scripting vulnerabilities exist in the ssh_form.php script functionality of Advantech R-SeeNet v 2.4.12 (20.10.2020). If a user visits a specially crafted URL, it can lead to arbitrary JavaScript code execution in the context of the targeted user’s browser. An attacker can provide a crafted URL to trigger this vulnerability.

Credit: talos-cna@cisco.com

Affected SoftwareAffected VersionHow to fix
Advantech R-SeeNet=2.4.12

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Frequently Asked Questions

  • What is CVE-2021-21800?

    CVE-2021-21800 is a cross-site scripting vulnerability in the ssh_form.php script functionality of Advantech R-SeeNet v 2.4.12.

  • How severe is CVE-2021-21800?

    CVE-2021-21800 has a severity rating of 6.1 (critical).

  • How does CVE-2021-21800 work?

    CVE-2021-21800 allows an attacker to execute arbitrary JavaScript code in the targeted user's browser if a specially crafted URL is visited.

  • What is the affected software of CVE-2021-21800?

    Advantech R-SeeNet version 2.4.12 is affected by CVE-2021-21800.

  • Is there a fix available for CVE-2021-21800?

    At the moment, there is no known fix available for CVE-2021-21800. It is recommended to apply any security patches provided by the vendor and follow secure coding practices.

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