CVE-2022-4663 : Security Advisory and Response

A critical vulnerability has been identified in the Members Import plugin for WordPress, allowing for Self Cross-Site Scripting attacks. Read on to understand the impact, technical details, and mitigation steps for CVE-2022-4663.

Understanding CVE-2022-4663

The Members Import plugin for WordPress is vulnerable to Self Cross-Site Scripting via the user_login parameter in an imported CSV file in versions up to, and including, 1.4.2 due to insufficient input sanitization and output escaping.

What is CVE-2022-4663?

The vulnerability in the Members Import plugin for WordPress allows attackers to inject arbitrary web scripts in pages that execute by tricking a site's administrator into uploading a CSV file with a malicious payload.

The Impact of CVE-2022-4663

This vulnerability poses a medium risk with a CVSS base score of 5.5 (Medium severity) as attackers can execute arbitrary scripts on vulnerable WordPress sites.

Technical Details of CVE-2022-4663

Vulnerability Description

The vulnerability arises from insufficient input sanitization and output escaping, allowing attackers to perform Self Cross-Site Scripting attacks via the user_login parameter in an imported CSV file.

Affected Systems and Versions

Vendor: manishkrag
Product: Members Import
Affected Versions: up to and including 1.4.2

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading a CSV file with a malicious payload and tricking a site's administrator into importing it.

Mitigation and Prevention

Immediate Steps to Take

Site administrators are advised to update the Members Import plugin to version 1.4.3 or above to mitigate the vulnerability.

Long-Term Security Practices

Always ensure input validation and output escaping mechanisms are in place to prevent Cross-Site Scripting attacks.

Patching and Updates

Regularly update WordPress plugins to the latest versions to address security vulnerabilities.