CVE-2021-38323 : Security Advisory and Response

RentPress WordPress plugin version 6.6.4 and below is vulnerable to Reflected Cross-Site Scripting (XSS) through the selections parameter in the ~/src/rentPress/AjaxRequests.php file. Attackers can exploit this to inject arbitrary web scripts.

Understanding CVE-2021-38323

This CVE-2021-38323 impacts RentPress plugin versions up to and including 6.6.4, allowing attackers to perform Reflected Cross-Site Scripting.

What is CVE-2021-38323?

The RentPress WordPress plugin is susceptible to Reflected Cross-Site Scripting via the selections parameter in the ~/src/rentPress/AjaxRequests.php file, enabling malicious actors to insert unauthorized web scripts.

The Impact of CVE-2021-38323

The vulnerability in RentPress up to version 6.6.4 poses a medium severity risk, granting attackers the ability to execute Reflected Cross-Site Scripting attacks.

Technical Details of CVE-2021-38323

RentPress plugin version 6.6.4 and earlier versions are prone to Reflected Cross-Site Scripting, providing attackers with the opportunity to inject arbitrary web scripts.

Vulnerability Description

The flaw allows threat actors to carry out Reflected Cross-Site Scripting attacks through the selections parameter within the ~/src/rentPress/AjaxRequests.php file.

Affected Systems and Versions

RentPress plugin versions up to and including 6.6.4 are impacted by this vulnerability, exposing WordPress sites to potential XSS attacks.

Exploitation Mechanism

By exploiting the selections parameter in the AjaxRequests.php file, attackers can inject malicious scripts into web pages hosted by sites using RentPress version 6.6.4 or below.

Mitigation and Prevention

To address CVE-2021-38323:

Immediate Steps to Take

Uninstall the RentPress plugin from your WordPress site immediately to mitigate the risk of Reflected Cross-Site Scripting.

Long-Term Security Practices

Regularly update plugins and themes, use security plugins, and monitor for any unusual activity to enhance the security of your WordPress site.

Patching and Updates

Stay informed about security patches released by plugin vendors and ensure timely installation to safeguard your website against known vulnerabilities.