CVE-2021-38330 : What You Need to Know

The Yet Another bol.com Plugin WordPress plugin version 1.4 and below is vulnerable to Reflected Cross-Site Scripting. Attackers can exploit this vulnerability by injecting arbitrary web scripts through a reflected $_SERVER["PHP_SELF"] value in the ~/yabp.php file.

Understanding CVE-2021-38330

This CVE involves a security flaw in the Yet Another bol.com Plugin WordPress plugin that allows for Reflected Cross-Site Scripting.

What is CVE-2021-38330?

The vulnerability in the Yet Another bol.com Plugin WordPress plugin version 1.4 and below enables attackers to inject malicious web scripts due to improper input validation.

The Impact of CVE-2021-38330

The impact of this CVE is rated as MEDIUM with a CVSS base score of 6.1. While it requires user interaction, the attack complexity is considered low.

Technical Details of CVE-2021-38330

This section covers the technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from a reflected $_SERVER["PHP_SELF"] value in the ~/yabp.php file, allowing attackers to execute arbitrary scripts.

Affected Systems and Versions

The CVE affects versions up to and including 1.4 of the Yet Another bol.com Plugin WordPress plugin.

Exploitation Mechanism

Attackers can exploit this vulnerability through a reflected value in the mentioned file to inject and execute malicious scripts.

Mitigation and Prevention

Protecting systems from CVE-2021-38330 involves immediate actions and long-term security practices.

Immediate Steps to Take

Users are advised to uninstall the vulnerable plugin from their WordPress site to mitigate the risk.

Long-Term Security Practices

Ensure regular security updates and audits for all installed plugins to prevent such vulnerabilities in the future.

Patching and Updates

Plugin vendors may release patches or updates to address the CVE. Stay informed about the latest security releases and apply them promptly.