CVE-2020-25702 : Vulnerability Insights and Analysis

In Moodle, a vulnerability allowed the inclusion of JavaScript when renaming content bank items, affecting versions 3.9 to 3.9.2. This issue has been addressed in Moodle versions 3.9.3 and 3.10.

Understanding CVE-2020-25702

This CVE entry pertains to a security vulnerability in Moodle that could enable the injection of JavaScript during the renaming of content bank items.

What is CVE-2020-25702?

The CVE-2020-25702 vulnerability in Moodle allowed malicious actors to insert JavaScript code while renaming content bank items, potentially leading to cross-site scripting (XSS) attacks.

The Impact of CVE-2020-25702

The exploitation of this vulnerability could result in unauthorized execution of scripts within the context of the user's session, potentially compromising sensitive data or performing actions on behalf of the user.

Technical Details of CVE-2020-25702

This section provides technical insights into the nature of the vulnerability.

Vulnerability Description

The vulnerability in Moodle versions 3.9 to 3.9.2 allowed the inclusion of JavaScript code during the renaming of content bank items, posing a risk of XSS attacks.

Affected Systems and Versions

Affected Product: Moodle
Affected Versions: 3.9 to 3.9.2
Fixed Versions: 3.9.3, 3.10

Exploitation Mechanism

The vulnerability could be exploited by an attacker to inject malicious JavaScript code into the content bank item names, potentially leading to XSS attacks.

Mitigation and Prevention

To address and prevent the CVE-2020-25702 vulnerability, the following steps are recommended:

Immediate Steps to Take

Update Moodle to versions 3.9.3 or 3.10 to mitigate the vulnerability.
Educate users to avoid renaming content bank items with potentially malicious content.

Long-Term Security Practices

Regularly monitor and audit Moodle instances for any suspicious activities.
Implement content security policies to restrict the execution of unauthorized scripts.

Patching and Updates

Stay informed about security updates and patches released by Moodle to address vulnerabilities promptly.