CVE-2021-24522 : Vulnerability Insights and Analysis

A security vulnerability labeled as CVE-2021-24522 has been identified in the User Registration, User Profile, Login & Membership – ProfilePress (Formerly WP User Avatar) WordPress plugin before version 3.1.11. This vulnerability could allow an attacker to execute an unauthenticated Cross-Site Scripting (XSS) attack through the widget for tabbed login/register, potentially leading to unauthorized wp-admin access. The issue arises from improper escaping and incorrect handling of HTTP requests within the plugin.

Understanding CVE-2021-24522

This section will explore the impact and technical details of the CVE-2021-24522 vulnerability.

What is CVE-2021-24522?

The CVE-2021-24522 vulnerability is an unauthenticated Cross-Site Scripting (XSS) flaw found in the ProfilePress WordPress plugin, allowing attackers to inject malicious scripts into web pages viewed by other users.

The Impact of CVE-2021-24522

The impact of this vulnerability is significant as it could potentially result in unauthorized access to wp-admin, enabling attackers to perform various malicious activities on the affected WordPress site.

Technical Details of CVE-2021-24522

Let's delve into the specifics of the vulnerability, including its description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The vulnerability arises from the widget for tabbed login/register within the ProfilePress plugin, which lacks proper data sanitization, opening up the possibility of XSS attacks through crafted HTTP requests.

Affected Systems and Versions

The issue impacts ProfilePress versions earlier than 3.1.11. Websites running these versions are at risk of exploitation if the vulnerable widget is accessible to unauthenticated users.

Exploitation Mechanism

By manipulating specific HTTP parameters, an attacker can inject malicious scripts through the tabbed login/register widget, potentially gaining access to sensitive areas like wp-admin.

Mitigation and Prevention

To safeguard your systems from CVE-2021-24522, immediate steps, long-term security practices, and the importance of timely patching and updates are crucial.

Immediate Steps to Take

Website administrators are advised to disable the tabbed login/register widget or apply security patches released by the plugin vendor to mitigate the risk of XSS attacks.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and keeping plugins and systems up to date can help prevent similar vulnerabilities in the future.

Patching and Updates

It is imperative to stay informed about security advisories and promptly apply patches and updates to ensure the ongoing security of your WordPress site.