CVE-2021-24691 Explained : Impact and Mitigation

A stored Cross-Site Scripting (XSS) vulnerability in the Quiz And Survey Master WordPress plugin before version 7.3.2 allows high privilege users to execute malicious scripts. Here's what you need to know about CVE-2021-24691:

Understanding CVE-2021-24691

This vulnerability in the Quiz And Survey Master plugin can be exploited by attackers to perform Cross-Site Scripting attacks.

What is CVE-2021-24691?

The Quiz And Survey Master WordPress plugin before 7.3.2 fails to properly sanitize the Quiz Url Slug setting, enabling administrators to inject malicious scripts.

The Impact of CVE-2021-24691

The vulnerability could allow high privilege users to execute arbitrary scripts, compromising the security and integrity of the affected WordPress websites.

Technical Details of CVE-2021-24691

Here are the technical details associated with CVE-2021-24691:

Vulnerability Description

The vulnerability arises due to improper handling of user input, specifically in the Quiz Url Slug setting, which could lead to the execution of malicious scripts.

Affected Systems and Versions

The Quiz And Survey Master WordPress plugin versions prior to 7.3.2 are impacted by this vulnerability.

Exploitation Mechanism

Attackers with high privilege access can exploit this vulnerability by injecting malicious scripts through the Quiz Url Slug setting.

Mitigation and Prevention

To safeguard your WordPress website from CVE-2021-24691, consider the following steps:

Immediate Steps to Take

Update the Quiz And Survey Master plugin to version 7.3.2 or higher to mitigate the vulnerability.
Monitor user inputs and sanitize all data to prevent script injections.

Long-Term Security Practices

Regularly audit and review plugins for security vulnerabilities.
Educate administrators about secure coding practices and the risks of Cross-Site Scripting.

Patching and Updates

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