CVE-2018-16759 : Exploit Details and Defense Strategies

EasyCMS v1.4 is vulnerable to XSS attacks due to a flaw in the removeXSS function, allowing exploitation via an onhashchange event.

Understanding CVE-2018-16759

EasyCMS v1.4 contains a security vulnerability that can be exploited for XSS attacks.

What is CVE-2018-16759?

The removeXSS function in EasyCMS v1.4 is susceptible to XSS attacks triggered by an onhashchange event.

The Impact of CVE-2018-16759

This vulnerability could allow attackers to execute malicious scripts in the context of a user's session, potentially leading to sensitive data theft or unauthorized actions.

Technical Details of CVE-2018-16759

EasyCMS v1.4's vulnerability in the removeXSS function exposes systems to XSS attacks.

Vulnerability Description

The removeXSS function in EasyCMS v1.4, specifically in the common.php file, can be abused for XSS attacks through the onhashchange event.

Affected Systems and Versions

Affected Version: EasyCMS v1.4

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the onhashchange event to inject and execute malicious scripts.

Mitigation and Prevention

To address CVE-2018-16759 and enhance security:

Immediate Steps to Take

Disable the affected function or apply a patch provided by the vendor.
Implement input validation to sanitize user inputs and prevent XSS attacks.

Long-Term Security Practices

Regularly update and patch the EasyCMS installation to mitigate known vulnerabilities.
Conduct security audits and penetration testing to identify and address potential security weaknesses.

Patching and Updates

Stay informed about security updates from EasyCMS and promptly apply patches to secure the system.