CVE-2021-36865 : What You Need to Know

WordPress Quiz And Survey Master plugin version <= 7.3.4 has been identified with an insecure direct object references (IDOR) vulnerability. This vulnerability allows attackers to modify the quiz content.

Understanding CVE-2021-36865

This CVE pertains to a security flaw in the Quiz And Survey Master WordPress plugin that enables unauthorized users to alter quiz content.

What is CVE-2021-36865?

The CVE-2021-36865 refers to an insecure direct object references (IDOR) vulnerability in the ExpressTech Quiz And Survey Master plugin version <= 7.3.4 for WordPress. This flaw permits malicious actors to tamper with quiz content, posing a significant threat to the integrity of quizzes.

The Impact of CVE-2021-36865

With a base severity rating of low (3.8), this vulnerability requires high privileges to exploit. Although the confidentiality impact is none, the integrity impact is low, and the availability impact is low. The attack complexity is low, and the attack vector is through the network.

Technical Details of CVE-2021-36865

The details of this CVE include:

Vulnerability Description

The insecure direct object references (IDOR) vulnerability in the affected WordPress plugin allows unauthorized users to change the quiz content, potentially impacting the accuracy and reliability of quiz results.

Affected Systems and Versions

The vulnerable version of the Quiz And Survey Master plugin is <= 7.3.4 for WordPress.

Exploitation Mechanism

Attackers with high privileges can exploit this vulnerability remotely through the network to manipulate quiz content.

Mitigation and Prevention

To address CVE-2021-36865, consider the following:

Immediate Steps to Take

Update the Quiz And Survey Master plugin to version 7.3.5 or higher immediately to mitigate the IDOR vulnerability.

Long-Term Security Practices

Regularly monitor and update plugins to ensure vulnerabilities are patched promptly. Implement least privilege principles to limit access to critical functionalities.

Patching and Updates

Stay informed about security advisories from plugin developers and promptly apply patches and updates to maintain the security of WordPress installations.