CVE-2023-24406 Explained : Impact and Mitigation

This article provides detailed information about CVE-2023-24406, a Cross-Site Scripting (XSS) vulnerability found in the Simple PopUp plugin for WordPress versions <= 1.8.6.

Understanding CVE-2023-24406

CVE-2023-24406 involves an authorization (admin+) Stored Cross-Site Scripting (XSS) vulnerability in the Simple PopUp plugin developed by Muneeb ur Rehman, affecting versions up to 1.8.6.

What is CVE-2023-24406?

The CVE-2023-24406 vulnerability is categorized as CAPEC-592 Stored XSS, allowing attackers with admin level privileges to inject malicious scripts into the plugin, potentially leading to unauthorized access or data theft.

The Impact of CVE-2023-24406

With a CVSS base score of 5.9, this medium severity vulnerability can result in unauthorized disclosure, data integrity compromise, and alteration of content when exploited. The vulnerability requires high privileges for successful exploitation and user interaction to execute the attack.

Technical Details of CVE-2023-24406

The vulnerability stems from improper neutralization of input during web page generation, falling under CWE-79.

Vulnerability Description

The vulnerability allows an attacker to inject and store malicious scripts in the plugin, which can be triggered when users with admin privileges interact with affected pages, leading to XSS attacks.

Affected Systems and Versions

The CVE-2023-24406 vulnerability affects Simple PopUp plugin versions up to 1.8.6, developed by Muneeb ur Rehman for WordPress installations.

Exploitation Mechanism

Attackers with admin privileges can exploit this vulnerability by injecting specially crafted scripts that, when executed, can steal sensitive information, manipulate content, or perform unauthorized actions on the website.

Mitigation and Prevention

To protect systems from CVE-2023-24406, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Update the Simple PopUp plugin to a secure version beyond 1.8.6 or apply available patches.
Restrict admin privileges to minimize the impact of potential attacks.
Regularly audit and monitor for any unauthorized changes or suspicious activities on the affected WordPress installations.

Long-Term Security Practices

Stay informed about security updates and vulnerabilities related to plugins and themes used in WordPress environments.
Educate users with admin privileges on best security practices, including avoiding suspicious links and content.
Implement a Web Application Firewall (WAF) to filter and block potential XSS attacks.

Patching and Updates

Regularly check for updates from plugin developers, apply patches promptly, and consider implementing an automated update mechanism to ensure timely protection against known vulnerabilities.