CVE-2023-6890 : What You Need to Know

This CVE-2023-6890 advisory details a Cross-site Scripting (XSS) vulnerability found in the GitHub repository thorsten/phpmyfaq before version 3.1.17.

Understanding CVE-2023-6890

This section provides an insight into the nature and impact of the CVE-2023-6890 vulnerability.

What is CVE-2023-6890?

CVE-2023-6890 is a Cross-site Scripting (XSS) vulnerability affecting the thorsten/phpmyfaq GitHub repository. This security flaw allows attackers to inject malicious scripts into web pages viewed by other users.

The Impact of CVE-2023-6890

The impact of this vulnerability is rated as MEDIUM severity with a CVSS base score of 6.7. The confidentiality impact is high while integrity impact is low. The attack complexity is rated as LOW with a NETWORK attack vector and HIGH availability impact. Privileges required for exploitation are rated as HIGH.

Technical Details of CVE-2023-6890

Delve deeper into the technical aspects of CVE-2023-6890 to understand how it affects systems and what can be done to mitigate its impact.

Vulnerability Description

The vulnerability stems from improper neutralization of input during web page generation, known as 'Cross-site Scripting' (CWE-79). Attackers can exploit this to execute malicious scripts on unsuspecting users.

Affected Systems and Versions

The specific product affected by this vulnerability is thorsten/phpmyfaq with versions prior to 3.1.17.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting crafted scripts into the thorsten/phpmyfaq application, which are then executed when viewed by other users, potentially leading to compromised data and unauthorized access.

Mitigation and Prevention

Learn how to protect systems against CVE-2023-6890 and prevent potential exploitation.

Immediate Steps to Take

Update the thorsten/phpmyfaq application to version 3.1.17 or later to mitigate the XSS vulnerability.
Regularly monitor and sanitize user inputs to prevent malicious script injections.

Long-Term Security Practices

Educate developers and users about the risks of XSS attacks and the importance of input validation.
Implement security measures such as Content Security Policy (CSP) to mitigate XSS vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by thorsten/phpmyfaq to address vulnerabilities and enhance the overall security posture of the application.