CVE-2021-25020 : What You Need to Know

The CAOS | Host Google Analytics Locally WordPress plugin before version 4.1.9 is affected by a vulnerability that allows high privilege users to delete arbitrary folders using a path traversal vector when uninstalling the plugin.

Understanding CVE-2021-25020

This CVE describes an issue in the CAOS | Host Google Analytics Locally WordPress plugin that leads to arbitrary folder deletion through path traversal.

What is CVE-2021-25020?

The vulnerability in the CAOS | Host Google Analytics Locally WordPress plugin, before version 4.1.9, stems from not validating the cache directory setting. This weakness enables users with high privileges to delete arbitrary folders during the plugin uninstallation process.

The Impact of CVE-2021-25020

The impact of this CVE is significant as it allows attackers with specific privileges to delete important folders on the server, leading to potential data loss and disruption of services.

Technical Details of CVE-2021-25020

This section outlines the technical details of the CVE, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from the plugin's failure to properly validate the cache directory setting, enabling users to delete folders outside the intended scope.

Affected Systems and Versions

CAOS | Host Google Analytics Locally plugin versions earlier than 4.1.9 are impacted by this vulnerability.

Exploitation Mechanism

Attackers with high privileges can exploit this vulnerability by leveraging a path traversal vector to delete folders not meant for deletion during plugin uninstallation.

Mitigation and Prevention

Protecting your systems from CVE-2021-25020 involves taking immediate steps and implementing long-term security practices.

Immediate Steps to Take

Update the CAOS | Host Google Analytics Locally plugin to version 4.1.9 or later.
Monitor system logs for any unusual folder deletion activities.

Long-Term Security Practices

Regularly update all plugins and software to patch known vulnerabilities.
Implement the principle of least privilege to restrict user capabilities.

Patching and Updates

Stay informed about security updates for all installed plugins and apply patches promptly to mitigate potential risks.