CVE-2021-45866 Explained : Impact and Mitigation

A Stored Cross Site Scripting (XSS) vulnerability exists in Sourcecodester Student Attendance Management System 1.0 via the course field in index.php.

Understanding CVE-2021-45866

A Stored Cross Site Scripting (XSS) vulnerability has been identified in the Sourcecodester Student Attendance Management System 1.0, posing a security risk.

What is CVE-2021-45866?

The vulnerability allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to unauthorized access, data theft, or other malicious actions.

The Impact of CVE-2021-45866

Attackers can execute arbitrary scripts in the context of a user's browser, leading to account takeovers or data manipulation.
Sensitive information may be exposed to unauthorized parties.

Technical Details of CVE-2021-45866

A deeper look into the technical aspects of the vulnerability.

Vulnerability Description

The XSS vulnerability occurs in the Sourcecodester Student Attendance Management System 1.0 through the course field on the index.php page, allowing attackers to insert malicious scripts.

Affected Systems and Versions

Affected Systems: Sourcecodester Student Attendance Management System 1.0
Affected Versions: All versions of the system are vulnerable.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting crafted scripts into the course field, which are then executed when other users view the page, leading to possible compromise.

Mitigation and Prevention

Actions to mitigate the risk and prevent exploitation of the vulnerability.

Immediate Steps to Take

Disable any unnecessary features or fields that may be vulnerable to XSS attacks.
Implement input validation to sanitize user inputs and prevent script injection.
Regularly monitor and review system logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security audits and penetration testing to identify and address vulnerabilities.
Stay informed about security best practices and updates in web application security.

Patching and Updates

Apply patches and updates provided by Sourcecodester for the Student Attendance Management System to fix the XSS vulnerability.