CVE-2021-38337 : Vulnerability Insights and Analysis

The RSVPMaker Excel WordPress plugin version 1.1 and below is vulnerable to Reflected Cross-Site Scripting. This vulnerability enables attackers to inject arbitrary web scripts through a reflected $_SERVER["PHP_SELF"] value in the download.php file.

Understanding CVE-2021-38337

This section will provide insights into the nature and impact of the CVE-2021-38337 vulnerability.

What is CVE-2021-38337?

The vulnerability exists in the RSVPMaker Excel WordPress plugin versions up to and including 1.1, allowing attackers to execute malicious scripts.

The Impact of CVE-2021-38337

CVE-2021-38337 poses a medium severity risk with a base score of 6.1. Attackers can exploit this vulnerability over a network, requiring user interaction to inject scripts.

Technical Details of CVE-2021-38337

Explore the technical aspects and details of the CVE-2021-38337 vulnerability.

Vulnerability Description

The vulnerability stems from a reflected $_SERVER["PHP_SELF"] value in the download.php file under ~/phpexcel/PHPExcel/Shared/JAMA/docs/, enabling cross-site scripting attacks.

Affected Systems and Versions

RSVPMaker Excel versions up to and including 1.1 are impacted by this vulnerability, potentially exposing websites to risk.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting arbitrary web scripts using the reflected $_SERVER["PHP_SELF"] value in the download.php file.

Mitigation and Prevention

Learn about the steps to mitigate the risk of CVE-2021-38337 and prevent such vulnerabilities in the future.

Immediate Steps to Take

To safeguard your WordPress site, uninstall the RSVPMaker Excel plugin immediately to eliminate the vulnerability.

Long-Term Security Practices

Ensure regular security audits, keep plugins updated, and follow secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security updates for plugins and software, apply patches promptly to address known vulnerabilities.