CVE-2021-41462 : Vulnerability Insights and Analysis

This CVE record describes a Cross-site scripting (XSS) vulnerability in concrete5-legacy version 5.6.4.0 and below, allowing remote attackers to inject arbitrary web script or HTML.

Understanding CVE-2021-41462

This section provides details about the vulnerability and its impact, along with technical information and mitigation strategies.

What is CVE-2021-41462?

The CVE-2021-41462 is a Cross-site scripting (XSS) vulnerability found in concrete/elements/collection_add.php in concrete5-legacy versions 5.6.4.0 and below. It enables remote attackers to inject unauthorized web script or HTML code via the ctID parameter.

The Impact of CVE-2021-41462

The vulnerability can result in malicious code injection, compromising user data and system integrity. Attackers can exploit this flaw to execute unauthorized scripts on the affected system, leading to various security breaches.

Technical Details of CVE-2021-41462

This section delves into the specifics of the vulnerability, affected systems, and the exploitation method.

Vulnerability Description

The XSS vulnerability in concrete/elements/collection_add.php allows attackers to insert malicious web scripts or HTML code through the ctID parameter, potentially leading to unauthorized actions on the target system.

Affected Systems and Versions

Product: concrete5-legacy
Vendor: N/A
Versions: 5.6.4.0 and below

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the ctID parameter in the affected file to inject unauthorized scripts or HTML, bypassing security mechanisms and compromising system integrity.

Mitigation and Prevention

Following are the recommended steps to mitigate the CVE-2021-41462 vulnerability:

Immediate Steps to Take

Implement input validation and sanitization to filter out malicious code injections.
Regularly update the concrete5-legacy software to the latest patched version.
Educate users about safe browsing practices and the risks associated with XSS attacks.

Long-Term Security Practices

Conduct regular security audits and penetration testing to identify and address vulnerabilities.
Monitor web application logs for suspicious activities and anomalous behavior.
Stay informed about security best practices and advancements in web security technologies.

Patching and Updates

Apply security patches provided by concrete5-legacy promptly to address the XSS vulnerability and enhance the overall security posture of the system.