CVE-2020-18658 : Security Advisory and Response

Get insights into the Cross Site Scripting (XSS) vulnerability in GetSimpleCMS <=3.3.15 and how to mitigate it.

Understanding CVE-2020-18658

This CVE involves a Cross Site Scripting (XSS) vulnerability in GetSimpleCMS version <=3.3.15, specifically through the timezone parameter in settings.php.

What is CVE-2020-18658?

GetSimpleCMS version <=3.3.15 is susceptible to Cross Site Scripting (XSS) attacks via the timezone parameter in settings.php, potentially allowing malicious actors to execute arbitrary scripts on the victim's browser.

The Impact of CVE-2020-18658

The vulnerability could lead to unauthorized access, data theft, and potential manipulation of content on affected websites, posing a significant security risk to users and organizations utilizing GetSimpleCMS.

Technical Details of CVE-2020-18658

Explore the technical aspects of the vulnerability in GetSimpleCMS.

Vulnerability Description

The XSS vulnerability in GetSimpleCMS <=3.3.15 allows attackers to inject malicious scripts through the timezone parameter in settings.php, leading to potential script execution in the context of the victim's browser.

Affected Systems and Versions

GetSimpleCMS version <=3.3.15

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the timezone parameter in settings.php, which, when executed, can compromise the security and integrity of the affected system.

Mitigation and Prevention

Discover the steps to mitigate and prevent the exploitation of CVE-2020-18658.

Immediate Steps to Take

Update GetSimpleCMS to a secure version that addresses the XSS vulnerability.
Implement input validation and output encoding to prevent script injection attacks.
Regularly monitor and audit the website for any suspicious activities or unauthorized changes.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.
Educate developers and administrators on secure coding practices and the risks associated with XSS vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by GetSimpleCMS to address known vulnerabilities, including XSS issues.