CVE-2021-40902 : Vulnerability Insights and Analysis

This CVE-2021-40902 article provides detailed information about a Cross Site Scripting (XSS) vulnerability in flatCore-CMS version 2.0.8.

Understanding CVE-2021-40902

This section will delve into the specifics of the CVE-2021-40902 vulnerability.

What is CVE-2021-40902?

CVE-2021-40902 is a Cross Site Scripting (XSS) vulnerability in flatCore-CMS version 2.0.8, specifically affecting the "Create New Page" option through the index page.

The Impact of CVE-2021-40902

The presence of this vulnerability enables attackers to inject malicious scripts into web pages viewed by other users, leading to various risks such as data theft, session hijacking, and website defacement.

Technical Details of CVE-2021-40902

This section will provide detailed technical insights into CVE-2021-40902.

Vulnerability Description

flatCore-CMS version 2.0.8 is vulnerable to Cross Site Scripting (XSS) in the "Create New Page" functionality accessible through the index page.

Affected Systems and Versions

Affected Product: flatCore-CMS
Affected Version: 2.0.8

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious scripts into the input fields of the "Create New Page" option, which are not properly sanitized by the application.

Mitigation and Prevention

In this section, we outline steps to mitigate and prevent exploitation of CVE-2021-40902.

Immediate Steps to Take

Update flatCore-CMS to a patched version that addresses the XSS vulnerability.
Restrict access to the "Create New Page" feature until the system is updated.

Long-Term Security Practices

Conduct regular security assessments to identify and address vulnerabilities in the CMS.
Implement input validation and output encoding to prevent XSS attacks.

Patching and Updates

Ensure timely installation of security patches released by flatCore-CMS to address known vulnerabilities.