CVE-2021-42943 : Security Advisory and Response

This CVE-2021-42943 article provides information about a stored cross-site scripting vulnerability in IPPlan v4.92b.

Understanding CVE-2021-42943

This section delves into the details and impact of the CVE-2021-42943 vulnerability.

What is CVE-2021-42943?

Stored cross-site scripting (XSS) in admin/usermanager.php over IPPlan v4.92b allows remote attackers to inject arbitrary web script or HTML via the userid parameter.

The Impact of CVE-2021-42943

This vulnerability can be exploited by remote attackers to insert malicious scripts or HTML code, potentially leading to unauthorized actions and data theft.

Technical Details of CVE-2021-42943

Exploring the technical aspects of the CVE-2021-42943 vulnerability.

Vulnerability Description

The vulnerability stems from improper input validation in the userid parameter of the admin/usermanager.php page, enabling malicious script injection.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: All versions of IPPlan v4.92b are affected by this XSS vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious web scripts or HTML code through the userid parameter, potentially compromising user data and system integrity.

Mitigation and Prevention

Tips to address and prevent the CVE-2021-42943 vulnerability.

Immediate Steps to Take

Implement input validation mechanisms to sanitize user inputs effectively.
Regularly monitor and update security configurations to detect and prevent XSS attacks.

Long-Term Security Practices

Conduct regular security assessments and audits to identify and remediate vulnerabilities.
Educate developers on secure coding practices to prevent XSS vulnerabilities.

Patching and Updates

Apply patches or updates provided by the vendor to address and mitigate the XSS vulnerability in IPPlan v4.92b.