CVE-2021-44091 Explained : Impact and Mitigation

A Cross-Site Scripting (XSS) vulnerability exists in Courcecodester Multi Restaurant Table Reservation System 1.0 allowing malicious actors to execute scripts on the victim's browser.

Understanding CVE-2021-44091

What is CVE-2021-44091?

The vulnerability in register.php within the system permits the injection of harmful scripts via specific parameters, posing a security risk.

The Impact of CVE-2021-44091

Exploitation of this vulnerability can lead to unauthorized data access, cookie theft, session hijacking, and potentially full system compromise.

Technical Details of CVE-2021-44091

Vulnerability Description

The XSS flaw in the system's register.php file enables attackers to input and execute malicious scripts through parameters like fullname, phone, and address.

Affected Systems and Versions

The specific affected version is 1.0 of the Courcecodester Multi Restaurant Table Reservation System.

Exploitation Mechanism

Attackers can exploit the vulnerability by injecting malicious scripts via the vulnerable parameters, potentially compromising user data and system integrity.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security patches from the vendor promptly.
Implement input validation and sanitization mechanisms to filter out malicious scripts.
Monitor and log user input for any suspicious activity.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify vulnerabilities.
Educate developers and system administrators on secure coding practices and potential attack vectors.

Patching and Updates

Stay informed about security updates and best practices from the vendor to mitigate the risk of XSS vulnerabilities.