CWE
79
Advisory Published
Updated

CVE-2021-23838: XSS

First published: Fri Jan 15 2021(Updated: )

An issue was discovered in flatCore before 2.0.0 build 139. A reflected XSS vulnerability was identified in the media_filter HTTP request body parameter for the acp interface. The affected parameter accepts malicious client-side script without proper input sanitization. For example, a malicious user can leverage this vulnerability to steal cookies from a victim user and perform a session-hijacking attack, which may then lead to unauthorized access to the site.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Flatcore Flatcore<=2.0.0

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Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID of this issue is CVE-2021-23838.

  • What is the severity rating of CVE-2021-23838?

    The severity rating of CVE-2021-23838 is medium with a score of 4.8.

  • What is the affected software of CVE-2021-23838?

    The affected software of CVE-2021-23838 is flatCore CMS before version 2.0.0 build 139.

  • What is the CWE category of CVE-2021-23838?

    The CWE category of CVE-2021-23838 is CWE-79 (Cross-Site Scripting).

  • How can I fix CVE-2021-23838?

    To fix CVE-2021-23838, update flatCore CMS to version 2.0.0 build 139 or later.

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