CVE-2021-24694 : Exploit Details and Defense Strategies

The Simple Download Monitor WordPress plugin before version 3.9.11 is vulnerable to Stored Cross-Site Scripting attacks, allowing users with low roles like Contributor to exploit certain shortcodes.

Understanding CVE-2021-24694

This CVE details a security vulnerability in the Simple Download Monitor plugin that can be exploited through specific shortcodes.

What is CVE-2021-24694?

The CVE-2021-24694 vulnerability in Simple Download Monitor plugin allows users with lower roles to conduct Stored Cross-Site Scripting attacks via specific shortcode arguments.

The Impact of CVE-2021-24694

This vulnerability can be exploited by users with minimal access rights to potentially inject malicious scripts into web pages, leading to Cross-Site Scripting attacks.

Technical Details of CVE-2021-24694

This section provides more insight into the vulnerability's description, affected systems, and how it can be exploited.

Vulnerability Description

The security flaw in Simple Download Monitor plugin before 3.9.11 enables users with roles as low as Contributor to execute Stored Cross-Site Scripting attacks using certain shortcode arguments.

Affected Systems and Versions

The vulnerability affects Simple Download Monitor plugin versions prior to 3.9.11.

Exploitation Mechanism

By manipulating specific shortcode arguments like "color" or "class" within the plugin, users can inject malicious scripts into the web pages, leading to Cross-Site Scripting attacks.

Mitigation and Prevention

To protect your system from CVE-2021-24694, follow these immediate steps and establish long-term security practices.

Immediate Steps to Take

Update the Simple Download Monitor plugin to version 3.9.11 or higher.
Restrict plugin access to trusted users only.

Long-Term Security Practices

Regularly monitor for plugin updates and security patches.
Educate users on safe practices while interacting with the plugin.

Patching and Updates

Stay informed about security advisories related to the Simple Download Monitor plugin and apply patches promptly.