CVE-2021-23836: XSS
First published: Fri Jan 15 2021(Updated: )
An issue was discovered in flatCore before 2.0.0 build 139. A stored XSS vulnerability was identified in the prefs_smtp_psw HTTP request body parameter for the acp interface. An admin user can inject malicious client-side script into the affected parameter without any form of input sanitization. The injected payload will be executed in the browser of a user whenever one visits the affected module page.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Flatcore Flatcore | <=2.0.0 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-23836?
CVE-2021-23836 is a stored XSS vulnerability discovered in flatCore CMS before version 2.0.0 build 139.
How severe is CVE-2021-23836?
CVE-2021-23836 has a severity rating of 4.8, which is considered medium.
What software versions are affected by CVE-2021-23836?
Versions up to and including 2.0.0 of flatCore CMS are affected by CVE-2021-23836.
How can the stored XSS vulnerability in flatCore CMS be exploited?
An admin user can inject malicious client-side script into the prefs_smtp_psw parameter in the HTTP request body for the acp interface.
Are there any patches or fixes available for CVE-2021-23836?
It is recommended to update flatCore CMS to version 2.0.0 build 139 or later to fix the stored XSS vulnerability.
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- version/flatcore flatcore/2.0.0