CVE-2021-39337 : Vulnerability Insights and Analysis

This article provides details about CVE-2021-39337, a vulnerability in the job-portal WordPress plugin.

Understanding CVE-2021-39337

This section will help you grasp the basics of the CVE-2021-39337 vulnerability.

What is CVE-2021-39337?

The job-portal WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization, allowing attackers with administrative user access to inject arbitrary web scripts in versions up to and including 0.0.1.

The Impact of CVE-2021-39337

The vulnerability has a base score of 5.5 (Medium severity) and affects multi-site installations where unfiltered_html is disabled for administrators.

Technical Details of CVE-2021-39337

This section covers the technical aspects of CVE-2021-39337.

Vulnerability Description

The vulnerability arises from several parameters in the ~/admin/jobs_function.php file that lack proper input validation, enabling the injection of malicious scripts.

Affected Systems and Versions

Affected Product: job-portal
Vendor: job-portal
Vulnerable Version: 0.0.1

Exploitation Mechanism

The vulnerability allows attackers with administrative access to exploit unfiltered_html disabled for administrators in the affected versions.

Mitigation and Prevention

Learn how to address and prevent the CVE-2021-39337 vulnerability.

Immediate Steps to Take

Uninstall the job-portal WordPress plugin from your site immediately.

Long-Term Security Practices

Regularly update and patch all plugins and themes on your WordPress site.
Implement proper input validation and sanitization practices in your codebase.

Patching and Updates

Stay informed about security updates and patches provided by reliable sources.