CVE-2018-10891 Explained : Impact and Mitigation

A vulnerability in Moodle versions 3.5.1, 3.4.4, 3.3.7, and 3.1.13 allowed the execution of embedded JavaScript code when importing a quiz question bank.

Understanding CVE-2018-10891

An overview of the impact, technical details, and mitigation strategies for CVE-2018-10891.

What is CVE-2018-10891?

This CVE refers to a flaw in Moodle that enabled the execution of JavaScript code within the question bank during the import of a quiz question bank.

The Impact of CVE-2018-10891

The vulnerability could potentially lead to the execution of malicious code embedded in the question bank, posing a security risk to Moodle users.

Technical Details of CVE-2018-10891

Insights into the vulnerability specifics and affected systems.

Vulnerability Description

When importing a quiz question bank in Moodle, the flaw allowed the execution of JavaScript code embedded within the bank, potentially leading to security breaches.

Affected Systems and Versions

Moodle 3.5.1
Moodle 3.4.4
Moodle 3.3.7
Moodle 3.1.13

Exploitation Mechanism

The vulnerability could be exploited by importing a quiz question bank containing malicious JavaScript code.

Mitigation and Prevention

Steps to address and prevent the CVE-2018-10891 vulnerability.

Immediate Steps to Take

Update Moodle to versions 3.5.1, 3.4.4, 3.3.7, or 3.1.13 to mitigate the risk.
Avoid importing quiz question banks from untrusted sources.

Long-Term Security Practices

Regularly update Moodle to the latest versions to patch known vulnerabilities.
Educate users on safe quiz question bank import practices.

Patching and Updates

Apply security patches provided by Moodle to address CVE-2018-10891 and other potential vulnerabilities.