CVE-2021-36864 : Exploit Details and Defense Strategies

WordPress Quiz And Survey Master plugin <= 7.3.4 - Auth. Reflected Cross-Site Scripting (XSS) vulnerability

Understanding CVE-2021-36864

This CVE involves an Authenticated Reflected Cross-Site Scripting (XSS) vulnerability in the ExpressTech Quiz And Survey Master plugin version <= 7.3.4 on WordPress.

What is CVE-2021-36864?

The CVE-2021-36864 identifies an Authenticated Reflected Cross-Site Scripting (XSS) vulnerability in the ExpressTech Quiz And Survey Master plugin version <= 7.3.4 on WordPress.

The Impact of CVE-2021-36864

This vulnerability could allow an authenticated attacker (editor or higher) to execute malicious scripts in the context of a user's browser when the user clicks on a specially crafted link, leading to potential data theft or unauthorized actions.

Technical Details of CVE-2021-36864

The technical details of CVE-2021-36864 are as follows:

Vulnerability Description

The vulnerability involves an Authenticated Reflected Cross-Site Scripting (XSS) issue in the ExpressTech Quiz And Survey Master plugin version <= 7.3.4 on WordPress.

Affected Systems and Versions

The affected system is the ExpressTech Quiz And Survey Master plugin version <= 7.3.4 in WordPress.

Exploitation Mechanism

The vulnerability can be exploited by an authenticated attacker with editor-level privileges who can trick users into clicking on a malicious link.

Mitigation and Prevention

To protect against CVE-2021-36864, the following steps can be taken:

Immediate Steps to Take

Upgrade the ExpressTech Quiz And Survey Master plugin to version 7.3.5 or higher to eliminate the vulnerability.

Long-Term Security Practices

Regularly update all plugins and themes, use security plugins, and educate users about safe browsing practices to prevent XSS attacks.

Patching and Updates

Stay informed about security updates and apply patches promptly to secure WordPress websites.