CVE-2021-46087 : Vulnerability Insights and Analysis

In jfinal_cms >= 5.10, a storage XSS vulnerability exists in the CMS background system. This allows users with background permission to compromise system security by injecting malicious code.

Understanding CVE-2021-46087

This CVE involves a significant risk due to the lack of proper input validation in jfinal_cms, potentially leading to unauthorized system access.

What is CVE-2021-46087?

The vulnerability in jfinal_cms >= 5.10 enables attackers with background access to execute XSS attacks by injecting harmful code through user input forms.

The Impact of CVE-2021-46087

The security flaw in jfinal_cms allows malicious users to manipulate the CMS system by inserting dangerous scripts, posing a threat to data confidentiality and system integrity.

Technical Details of CVE-2021-46087

This section delves into specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability stems from the absence of input sanitization in the user input form of jfinal_cms >= 5.10, enabling the injection of malicious code by privileged users.

Affected Systems and Versions

Product: jfinal_cms
Versions affected: >= 5.10

Exploitation Mechanism

Attackers with background permissions exploit this vulnerability by submitting crafted input containing malicious scripts, thereby compromising the system.

Mitigation and Prevention

Protect your system from CVE-2021-46087 by following these mitigation measures.

Immediate Steps to Take

Implement input validation and filtering to prevent malicious code injection.
Regularly monitor user activities in the CMS background system.
Educate users with background permissions about security best practices.

Long-Term Security Practices

Conduct regular security assessments and audits for the CMS environment.
Stay informed about security updates and patches for jfinal_cms.

Patching and Updates

Apply relevant patches and updates released by the jfinal_cms maintainers to address the XSS vulnerability.