CVE-2023-1798 : Security Advisory and Response

This CVE-2023-1798 is related to a cross-site scripting (XSS) vulnerability found in EyouCMS up to version 1.5.4, specifically affecting the 'login.php' file. The issue allows for remote attacks through manipulation of the 'typename' argument, leading to a cross-site scripting exploit.

Understanding CVE-2023-1798

This section delves deeper into the details and impact of the CVE-2023-1798 vulnerability in EyouCMS.

What is CVE-2023-1798?

The CVE-2023-1798 vulnerability involves a cross-site scripting flaw in EyouCMS versions up to 1.5.4, particularly within the 'login.php' file. By altering the 'typename' parameter with malicious input, attackers can execute cross-site scripting attacks, potentially compromising the security of the system. This vulnerability has been publicly disclosed with identifier VDB-224750.

The Impact of CVE-2023-1798

With a base score of 3.5 (Low severity), this CVE poses a security risk as it allows for remote exploitation through a crafted request. If successfully leveraged, an attacker could inject malicious scripts into the web application, leading to various security threats such as data theft, phishing attacks, and unauthorized access.

Technical Details of CVE-2023-1798

Exploring the vulnerability specifics, affected systems, and the mechanism of exploitation in more detail.

Vulnerability Description

The vulnerability stems from inadequate input validation within the 'login.php' file of EyouCMS versions up to 1.5.4. By manipulating the 'typename' parameter, threat actors can inject and execute malicious scripts in the context of the affected web application, undermining its security integrity.

Affected Systems and Versions

EyouCMS versions 1.5.0 to 1.5.4 are confirmed to be impacted by CVE-2023-1798. Organizations utilizing these versions of the content management system are at risk of potential cross-site scripting attacks unless appropriate mitigation measures are implemented.

Exploitation Mechanism

Attackers can exploit this vulnerability remotely by sending crafted requests to the targeted EyouCMS instance, leveraging the insecure input handling of the 'typename' parameter to execute malicious scripts within the application's context, thereby compromising its security posture.

Mitigation and Prevention

Guidelines on addressing and mitigating the CVE-2023-1798 vulnerability to enhance the security of EyouCMS installations.

Immediate Steps to Take

Patch Installation: Apply security patches released by EyouCMS promptly to address the identified cross-site scripting vulnerability.
Input Sanitization: Implement strict input validation and sanitization routines to filter out potentially malicious content.
Monitoring and Logging: Monitor web application logs for any suspicious activities or attempted XSS attacks.

Long-Term Security Practices

Regular Security Audits: Conduct periodic security assessments and audits to identify and remediate vulnerabilities proactively.
User Awareness Training: Educate users and administrators about the risks of XSS attacks and the importance of secure coding practices.
Security Best Practices: Follow industry best practices for web application security, including secure coding guidelines and secure configuration management.

Patching and Updates

Stay informed about security updates and patches released by EyouCMS. Regularly apply these updates to ensure that your system is safeguarded against known vulnerabilities, including CVE-2023-1798.