CVE-2023-49337 : Vulnerability Insights and Analysis

A Stored XSS vulnerability in Concrete CMS before version 9.2.3 allows attackers to execute malicious scripts on the Admin Dashboard, impacting system security.

Understanding CVE-2023-49337

Concrete CMS versions prior to 9.2.3 are vulnerable to Stored XSS attacks on the Admin Dashboard, excluding versions 8.5 and earlier.

What is CVE-2023-49337?

CVE-2023-49337 is a vulnerability in Concrete CMS that permits Stored XSS attacks on the Admin Dashboard through a specific endpoint.

The Impact of CVE-2023-49337

This vulnerability can be exploited by attackers to inject and execute malicious scripts within the Concrete CMS application, potentially leading to unauthorized access, data theft, or further system compromise.

Technical Details of CVE-2023-49337

The following technical aspects are associated with CVE-2023-49337:

Vulnerability Description

Concrete CMS versions before 9.2.3 are susceptible to Stored XSS attacks via the /dashboard/system/basics/name endpoint.

Affected Systems and Versions

All versions of Concrete CMS prior to 9.2.3 are affected by this vulnerability, while version 8.5 and earlier remain unaffected.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the specified name parameter on the Admin Dashboard, allowing them to execute arbitrary code in the context of the user's session.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-49337, users and administrators should consider the following steps:

Immediate Steps to Take

Upgrade Concrete CMS to version 9.2.3 or later to address the vulnerability and prevent exploitation.
Implement input validation and output encoding to sanitize user inputs and prevent XSS attacks.

Long-Term Security Practices

Regularly monitor security advisories and updates from Concrete CMS to stay informed about potential vulnerabilities and patches.
Conduct security assessments and penetration testing on the CMS to identify and address security weaknesses proactively.

Patching and Updates

Apply patches and updates released by Concrete CMS promptly to ensure that the CMS remains secure and protected against known vulnerabilities.