CVE-2023-51473 : Security Advisory and Response

WordPress TerraClassifieds Plugin <= 2.0.3 is vulnerable to Arbitrary File Upload.

Understanding CVE-2023-51473

This CVE-2023-51473 involves an Unrestricted Upload of File with Dangerous Type vulnerability in Pixelemu TerraClassifieds – Simple Classifieds Plugin.

What is CVE-2023-51473?

CVE-2023-51473 is a critical vulnerability that allows attackers to upload malicious files of dangerous types without any restrictions.

The Impact of CVE-2023-51473

This vulnerability can lead to high impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2023-51473

This section covers the vulnerability description, affected systems and versions, and exploitation mechanism.

Vulnerability Description

The vulnerability allows for the unrestricted upload of files with dangerous types, affecting Pixelemu TerraClassifieds Plugin versions up to 2.0.3.

Affected Systems and Versions

TerraClassifieds – Simple Classifieds Plugin version up to 2.0.3 is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability through a network-based attack with low complexity, resulting in critical impacts on confidentiality, integrity, and availability.

Mitigation and Prevention

In this section, you will find steps to take immediately and best security practices for long-term protection against CVE-2023-51473.

Immediate Steps to Take

Update TerraClassifieds Plugin to version 2.0.4 or higher to patch the vulnerability.
Monitor file uploads and restrict dangerous file types within the plugin settings.

Long-Term Security Practices

Regularly update all plugins and software to the latest versions to protect against known vulnerabilities.
Implement file upload restrictions and user input validation to mitigate similar attacks in the future.

Patching and Updates

Stay informed about security updates for the TerraClassifieds Plugin and apply patches promptly to maintain a secure environment.