CVE-2023-35131 Explained : Impact and Mitigation

A detailed overview of CVE-2023-35131, a vulnerability affecting Moodle versions with potential XSS risk.

Understanding CVE-2023-35131

This section dives into the impact and technical details of the CVE-2023-35131 vulnerability.

What is CVE-2023-35131?

CVE-2023-35131 found in Moodle versions 3.11 to 4.2 required additional content sanitization on the groups page to avoid cross-site scripting (XSS) threats.

The Impact of CVE-2023-35131

The vulnerability impacts versions 3.11 to 4.2 of the Moodle LMS, potentially exposing users to XSS attacks through unsanitized content.

Technical Details of CVE-2023-35131

Explore the specifics of the CVE-2023-35131 vulnerability.

Vulnerability Description

The flaw in Moodle versions 3.11 to 4.2 allows attackers to execute malicious scripts due to inadequate content sanitization on the groups page.

Affected Systems and Versions

Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8, and 3.11 to 3.11.14 are affected by CVE-2023-35131, necessitating immediate attention.

Exploitation Mechanism

Malicious actors can exploit the vulnerability by injecting harmful scripts into the unsanitized content on Moodle's groups page.

Mitigation and Prevention

Discover the steps to mitigate and secure systems against CVE-2023-35131.

Immediate Steps to Take

Ensure content on the groups page is sanitized to prevent XSS risks and consider applying security patches promptly.

Long-Term Security Practices

Implement regular security audits and educate users on content validation to minimize XSS vulnerabilities in Moodle.

Patching and Updates

Stay informed about security updates from Moodle to address vulnerabilities promptly and enhance system security.