CVE-2021-24339 : Exploit Details and Defense Strategies

Pods < 2.7.27 - Authenticated Stored Cross-Site Scripting (XSS)

Understanding CVE-2021-24339

This CVE relates to an Authenticated Stored Cross-Site Scripting vulnerability found in the Pods - Custom Content Types and Fields WordPress plugin before version 2.7.27.

What is CVE-2021-24339?

The vulnerability in question allows for an attacker to execute malicious scripts via an authenticated user account, posing a significant risk to website security.

The Impact of CVE-2021-24339

If exploited, this vulnerability could lead to unauthorized access, data theft, defacement, or complete compromise of the affected WordPress website.

Technical Details of CVE-2021-24339

In this section, we delve into the technical aspects surrounding CVE-2021-24339.

Vulnerability Description

The vulnerability stems from improper input validation within the 'Menu Label' field parameter, enabling attackers to inject malicious scripts.

Affected Systems and Versions

Pods - Custom Content Types and Fields plugin versions prior to 2.7.27 are vulnerable to this exploit, particularly versions 2.4.4.1 and below 2.7.27.

Exploitation Mechanism

By leveraging an authenticated user account, threat actors can insert harmful scripts into the 'Menu Label' field, leading to the execution of Cross-Site Scripting attacks.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-24339, users should take the following measures.

Immediate Steps to Take

Update the Pods plugin to version 2.7.27 or later to eliminate the vulnerability.
Monitor website activity for any unauthorized changes or suspicious behavior.

Long-Term Security Practices

Regularly scan and audit WordPress plugins for security vulnerabilities.
Educate users on best practices to prevent XSS attacks, such as input validation and output sanitization.

Patching and Updates

Stay informed about security updates and patches released by the Pods Framework Team to address known vulnerabilities.