CVE-2021-39346 Explained : Impact and Mitigation

This CVE-2021-39346 article provides details about the Google Maps Easy WordPress plugin vulnerability and its impact, along with mitigation steps.

Understanding CVE-2021-39346

CVE-2021-39346 is a vulnerability in the Google Maps Easy WordPress plugin that allows for Stored Cross-Site Scripting attacks.

What is CVE-2021-39346?

The vulnerability arises due to insufficient input validation and sanitization in the plugin, enabling attackers with administrative user access to inject arbitrary web scripts.

The Impact of CVE-2021-39346

This vulnerability affects multi-site installations where unfiltered_html is disabled for administrators and on sites where unfiltered_html is disabled. The base severity is rated as MEDIUM.

Technical Details of CVE-2021-39346

Detailed technical information about the CVE-2021-39346 vulnerability is provided below.

Vulnerability Description

The issue allows attackers with administrative user access to execute stored Cross-Site Scripting attacks by injecting malicious scripts through specific parameters in the plugin file.

Affected Systems and Versions

Product: Google Maps Easy
Vendor: Google Maps Easy
Versions Affected: 1.9.33 and below

Exploitation Mechanism

Attack Complexity: LOW
Attack Vector: NETWORK
Privileges Required: HIGH
User Interaction: REQUIRED

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2021-39346 are outlined below.

Immediate Steps to Take

Update the Google Maps Easy plugin to version 1.10.1 or newer.

Long-Term Security Practices

Regularly audit and update plugins to ensure security.
Educate administrators about the risks of unfiltered_html.

Patching and Updates

Stay informed about security advisories and apply updates promptly.