CVE-2023-23756 Explained : Impact and Mitigation

This article provides insight into CVE-2023-23756, focusing on Understanding, Technical Details, and Mitigation strategies for this vulnerability in the advcomsys.com oneVote component for Joomla.

Understanding CVE-2023-23756

CVE-2023-23756 is a Cross-site Scripting (XSS) vulnerability identified in the oneVote component for Joomla, specifically versions <= 1.7.0. This vulnerability allows for improper neutralization of input during web page generation, enabling XSS targeting non-script elements.

What is CVE-2023-23756?

The CVE-2023-23756 vulnerability in the advcomsys.com oneVote component for Joomla refers to the inadequate handling of user input during the generation of web pages. This flaw makes it possible for malicious actors to execute XSS attacks targeting non-script elements.

The Impact of CVE-2023-23756

The impact of CVE-2023-23756, also known as CAPEC-18 XSS Targeting Non-Script Elements, can lead to malicious actors injecting scripts into web pages viewed by other users. This can result in unauthorized access to sensitive information, session hijacking, or defacement of the affected website.

Technical Details of CVE-2023-23756

The vulnerability description involves the improper neutralization of input during web page generation, allowing for XSS targeting non-script elements. The affected system in this case is the advcomsys.com oneVote component for Joomla version 1.7.0.

Vulnerability Description

The vulnerability arises due to insufficient input validation, enabling attackers to inject malicious scripts into the web application.

Affected Systems and Versions

The oneVote component for Joomla versions <= 1.7.0 by advcomsys.com is impacted by CVE-2023-23756.

Exploitation Mechanism

Malicious actors can exploit this vulnerability by inserting crafted scripts into input fields accessible to users, leading to the execution of unauthorized code in the context of other users' sessions.

Mitigation and Prevention

To address CVE-2023-23756 and prevent potential exploitation, immediate steps must be taken along with the implementation of long-term security practices.

Immediate Steps to Take

Update the affected oneVote component for Joomla to a patched version that addresses the XSS vulnerability.
Implement input validation mechanisms to sanitize user inputs and prevent malicious script injections.
Regularly monitor and audit the codebase for vulnerabilities to ensure timely mitigation.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and fix vulnerabilities proactively.
Educate developers and administrators on secure coding practices to prevent common web application security issues like XSS.
Stay informed about security advisories related to Joomla extensions and promptly apply recommended patches.

Patching and Updates

Refer to the official advisory from Joomla for CVE-2023-23756, providing guidance on updating the oneVote component to a secure version that addresses the XSS vulnerability. Regularly check for updates and security patches to maintain a secure web environment.