CVE-2018-12266 Explained : Impact and Mitigation

HongCMS 3.0.0's 404.php file is susceptible to XSS attacks triggered by specially crafted input.

Understanding CVE-2018-12266

This CVE involves a cross-site scripting vulnerability in HongCMS 3.0.0's 404.php file.

What is CVE-2018-12266?

The 404.php file in HongCMS 3.0.0 is vulnerable to XSS attacks when it receives specially crafted input that triggers a 404 HTTP status code.

The Impact of CVE-2018-12266

This vulnerability could allow an attacker to execute malicious scripts in the context of a user's browser, potentially leading to account hijacking, data theft, or other harmful actions.

Technical Details of CVE-2018-12266

Vulnerability Description

system\errors\404.php in HongCMS 3.0.0 has XSS via crafted input that triggers a 404 HTTP status code.

Affected Systems and Versions

Product: HongCMS 3.0.0
Vendor: N/A
Version: N/A

Exploitation Mechanism

The vulnerability can be exploited by sending specially crafted input to the 404.php file, which, when processed, triggers a 404 HTTP status code and executes the XSS attack.

Mitigation and Prevention

Immediate Steps to Take

Implement input validation to sanitize user inputs and prevent malicious scripts from executing.
Regularly monitor and audit web application logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Stay informed about security best practices and updates in web application security.

Patching and Updates

Ensure that the HongCMS platform is updated to the latest version that includes patches for the XSS vulnerability.