CVE-2020-19118 : Security Advisory and Response

YzmCMS 5.2 is affected by a Cross Site Scripting (XSS) vulnerability through the site_code parameter in admin/index/init.html.

Understanding CVE-2020-19118

This CVE entry describes a specific XSS vulnerability in YzmCMS 5.2.

What is CVE-2020-19118?

CVE-2020-19118 is a Cross Site Scripting (XSS) vulnerability found in YzmCMS 5.2, allowing attackers to execute malicious scripts via the site_code parameter in the admin/index/init.html page.

The Impact of CVE-2020-19118

This vulnerability could be exploited by attackers to inject malicious scripts into web pages viewed by other users, potentially leading to unauthorized access, data theft, or other malicious activities.

Technical Details of CVE-2020-19118

YzmCMS 5.2 is susceptible to XSS attacks due to improper input validation in the site_code parameter.

Vulnerability Description

The vulnerability arises from inadequate sanitization of user-supplied data in the site_code parameter, enabling attackers to inject and execute malicious scripts.

Affected Systems and Versions

Product: YzmCMS 5.2
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the site_code parameter of the admin/index/init.html page, which may execute when viewed by other users.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-19118.

Immediate Steps to Take

Disable or restrict access to the affected admin/index/init.html page.
Implement input validation and sanitization mechanisms to filter out potentially malicious scripts.
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 proactively.
Educate developers and administrators on secure coding practices and the risks associated with XSS vulnerabilities.

Patching and Updates

Apply patches or updates provided by the vendor to address the XSS vulnerability in YzmCMS 5.2.