CVE-2023-3973 : Security Advisory and Response

This CVE involves a Cross-site Scripting (XSS) vulnerability reflected in the GitHub repository jgraph/drawio before version 21.6.3.

Understanding CVE-2023-3973

This section will delve into the details of CVE-2023-3973, discussing what it is and the impact it can have.

What is CVE-2023-3973?

CVE-2023-3973 is a Cross-site Scripting (XSS) vulnerability identified in the jgraph/drawio GitHub repository. This vulnerability occurs before version 21.6.3 and can potentially lead to security breaches.

The Impact of CVE-2023-3973

The impact of this vulnerability is rated as critical with a base severity score of 9.6. It can result in high confidentiality and integrity impacts, making it crucial to address promptly.

Technical Details of CVE-2023-3973

Understanding the technical aspects of CVE-2023-3973 is essential for organizations to mitigate and prevent any potential risks.

Vulnerability Description

The vulnerability stems from improper neutralization of input during web page generation, a common issue in Cross-site Scripting (XSS) vulnerabilities (CWE-79).

Affected Systems and Versions

The CVE affects the jgraph/drawio product with versions prior to 21.6.3. Systems running these versions are susceptible to exploitation through this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability through a low attack complexity, utilizing network-based attack vectors. No privileges are required, but user interaction is necessary for successful exploitation.

Mitigation and Prevention

Mitigating CVE-2023-3973 requires immediate action to secure systems and prevent potential security breaches.

Immediate Steps to Take

Organizations should update their jgraph/drawio installations to version 21.6.3 or newer to remediate the XSS vulnerability. Additionally, implementing input validation controls can help mitigate the risk of such vulnerabilities in the future.

Long-Term Security Practices

In the long term, organizations should prioritize secure coding practices, conduct regular security audits, and educate developers on best practices for preventing XSS vulnerabilities.

Patching and Updates

Regularly applying security patches and updates to all software components, including third-party dependencies like jgraph/drawio, is crucial to maintaining a secure environment and protecting against known vulnerabilities.