CVE-2021-24247 : Vulnerability Insights and Analysis

This CVE-2021-24247 article provides insights into the Contact Form Check Tester WordPress plugin vulnerability that allows registered users to execute XSS attacks, leading to potential privilege escalation.

Understanding CVE-2021-24247

This section delves into the details of the CVE-2021-24247 vulnerability affecting the Contact Form Check Tester plugin.

What is CVE-2021-24247?

The Contact Form Check Tester WordPress plugin version 1.0.2 and below exposes settings to all registered users without proper sanitization. This flaw enables any registered user, including subscribers, to inject XSS payloads into the settings, posing a risk of privilege escalation.

The Impact of CVE-2021-24247

The vulnerability in Contact Form Check Tester up to version 1.0.2 could be exploited by malicious users to execute XSS attacks, potentially leading to unauthorized access and privilege escalation.

Technical Details of CVE-2021-24247

This section outlines the technical aspects and implications of CVE-2021-24247.

Vulnerability Description

The flaw in Contact Form Check Tester plugin allows all registered users unrestricted access to settings, enabling the injection of malicious XSS payloads.

Affected Systems and Versions

Contact Form Check Tester version 1.0.2 and earlier are affected by this vulnerability.

Exploitation Mechanism

By inserting XSS payloads into the plugin settings, registered users, including subscribers, can execute unauthorized scripts, posing a risk of privilege escalation.

Mitigation and Prevention

Understanding how to mitigate and prevent the CVE-2021-24247 vulnerability is crucial for maintaining WordPress plugin security.

Immediate Steps to Take

Update the Contact Form Check Tester plugin to a secure version and restrict access to sensitive settings to authorized users only.

Long-Term Security Practices

Regularly audit plugins for vulnerabilities, implement least privilege access controls, and educate users on safe data handling practices.

Patching and Updates

Stay updated on security patches released by MooveAgency for Contact Form Check Tester to address known vulnerabilities and enhance plugin security.