CVE-2021-24699 : Exploit Details and Defense Strategies

This article provides details about CVE-2021-24699, a vulnerability found in the Easy Media Download WordPress plugin before version 1.1.7 that could lead to Stored Cross-Site Scripting attacks.

Understanding CVE-2021-24699

This section explains the impact, technical details, and mitigation strategies related to CVE-2021-24699.

What is CVE-2021-24699?

The Easy Media Download WordPress plugin before 1.1.7 is vulnerable to Stored Cross-Site Scripting attacks due to improper handling of the text argument in its shortcode, allowing low-privileged users like Contributors to exploit this issue.

The Impact of CVE-2021-24699

A threat actor with a role as low as Contributor can inject malicious scripts through the plugin's shortcode, posing a risk of executing arbitrary code within the context of the user's browser.

Technical Details of CVE-2021-24699

Let's dive into the specifics of this vulnerability.

Vulnerability Description

The vulnerability originates from the plugin's failure to properly escape the text argument in its shortcode, enabling attackers to insert malicious scripts for execution.

Affected Systems and Versions

Easy Media Download versions prior to 1.1.7 are affected by this vulnerability, putting WordPress sites at risk of Cross-Site Scripting attacks.

Exploitation Mechanism

By crafting a malicious script and injecting it through the compromised plugin, an attacker with a role as low as Contributor can execute Cross-Site Scripting attacks on vulnerable WordPress sites.

Mitigation and Prevention

Discover the steps to mitigate the risk associated with CVE-2021-24699.

Immediate Steps to Take

It is crucial to update the Easy Media Download plugin to version 1.1.7 or higher to eliminate the vulnerability and enhance the security posture of WordPress websites.

Long-Term Security Practices

Implementing security measures like regular plugin updates, user role management, and input validation can help prevent similar Cross-Site Scripting incidents in the future.

Patching and Updates

Stay informed about security patches released by the plugin vendor and apply them promptly to safeguard WordPress installations against emerging threats.