CVE-2021-24763 : Security Advisory and Response

This CVE-2021-24763 article provides detailed information about the Perfect Survey WordPress plugin vulnerability before version 1.5.2. It discusses the lack of proper authorization and CSRF checks, leading to a Stored Cross-Site Scripting issue.

Understanding CVE-2021-24763

This section delves into the impact and technical details of the CVE-2021-24763 vulnerability.

What is CVE-2021-24763?

The Perfect Survey WordPress plugin before 1.5.2 lacks proper authorization and CSRF checks in the save_global_setting AJAX action, enabling unauthenticated users to edit surveys and modify settings. This oversight could result in a Stored Cross-Site Scripting issue executed when a user views any survey.

The Impact of CVE-2021-24763

The vulnerability allows unauthorized users to make changes to surveys and settings, posing a significant risk of Stored Cross-Site Scripting attacks. This could potentially compromise the security and integrity of the WordPress site using the vulnerable plugin.

Technical Details of CVE-2021-24763

This section covers specific technical aspects of the CVE-2021-24763 vulnerability.

Vulnerability Description

The lack of proper authorization and CSRF checks in the save_global_setting AJAX action exposes the Perfect Survey plugin to unauthorized access and modification by unauthenticated users, leading to a Stored Cross-Site Scripting issue.

Affected Systems and Versions

The vulnerability affects all versions of the Perfect Survey WordPress plugin before 1.5.2, leaving them susceptible to exploitation by malicious actors.

Exploitation Mechanism

Unauthorized users can exploit this vulnerability by manipulating survey settings through the save_global_setting AJAX action, potentially executing malicious scripts in the context of unsuspecting users viewing the survey.

Mitigation and Prevention

This section outlines steps to mitigate the risks associated with CVE-2021-24763.

Immediate Steps to Take

To address the vulnerability, users should update the Perfect Survey plugin to version 1.5.2 or newer. Additionally, website administrators should review and restrict access to the affected plugin settings.

Long-Term Security Practices

Implementing regular security audits, monitoring plugin updates, and educating users on cybersecurity best practices can enhance the overall security posture of WordPress websites.

Patching and Updates

It is crucial for users to stay informed about security patches released for the Perfect Survey plugin and promptly apply them to prevent exploitation of known vulnerabilities.