CVE-2022-4751 Explained : Impact and Mitigation

Word Balloon < 4.19.3 - Contributor+ Stored XSS via Shortcode

Understanding CVE-2022-4751

This CVE identifier pertains to a vulnerability in the Word Balloon WordPress plugin version before 4.19.3. The vulnerability allows users with low privileges, such as contributors, to execute Stored Cross-Site Scripting attacks.

What is CVE-2022-4751?

The Word Balloon WordPress plugin before version 4.19.3 fails to validate and escape certain shortcode attributes, enabling contributors to carry out Stored Cross-Site Scripting attacks that may target higher privilege users like admins.

The Impact of CVE-2022-4751

This vulnerability poses a significant threat as it allows attackers with limited access to elevate their privileges and potentially compromise the security and integrity of the WordPress site.

Technical Details of CVE-2022-4751

Vulnerability Description

The vulnerability arises from the inadequate validation and escaping of shortcode attributes in the affected versions of the Word Balloon plugin, facilitating Stored Cross-Site Scripting attacks by lesser privileged users.

Affected Systems and Versions

The issue affects Word Balloon plugin versions prior to 4.19.3. Users with these versions installed are at risk of exploitation by low-privileged contributors.

Exploitation Mechanism

By leveraging this vulnerability, contributors can inject malicious scripts via shortcodes which, when executed, could lead to unauthorized access and manipulation of the WordPress site by escalating their user privileges.

Mitigation and Prevention

Immediate Steps to Take

Users are advised to update the Word Balloon plugin to version 4.19.3 or newer to mitigate the vulnerability. Additionally, site administrators should review user roles and permissions to limit the impact of a potential attack.

Long-Term Security Practices

Implementing secure coding practices, regular security audits, and user role management can help prevent such vulnerabilities in WordPress plugins. Training users on safe behavior online can also enhance overall security.

Patching and Updates

Regularly applying security patches and updates released by plugin developers is essential to stay protected against known vulnerabilities and ensure the overall security of WordPress websites.