CVE-2017-7298 : Security Advisory and Response

Moodle version 3.2.2 and above contain a Cross-Site Scripting (XSS) vulnerability in the Course summary filter on the "Add a new course" page. This vulnerability can be exploited by using a manipulated attribute of an SVG element.

Understanding CVE-2017-7298

This CVE entry describes a specific XSS vulnerability in Moodle versions 3.2.2 and higher, affecting the Course summary filter on the "Add a new course" page.

What is CVE-2017-7298?

CVE-2017-7298 is a Cross-Site Scripting (XSS) vulnerability found in Moodle versions 3.2.2 and above. It allows attackers to execute malicious scripts in a victim's browser by manipulating attributes of SVG elements.

The Impact of CVE-2017-7298

This vulnerability could be exploited by attackers to execute arbitrary code, steal sensitive information, or perform actions on behalf of users without their consent.

Technical Details of CVE-2017-7298

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The XSS vulnerability in Moodle 3.2.2+ allows attackers to inject and execute malicious scripts through the Course summary filter on the "Add a new course" page.

Affected Systems and Versions

Affected Version: Moodle 3.2.2 and above
Systems: All instances running the affected versions of Moodle

Exploitation Mechanism

Attackers can exploit this vulnerability by inserting manipulated attributes into SVG elements, enabling them to execute unauthorized scripts in the context of a user's session.

Mitigation and Prevention

Protecting systems from CVE-2017-7298 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Moodle to the latest patched version that addresses the XSS vulnerability.
Educate users about the risks of clicking on suspicious links or accessing untrusted content.

Long-Term Security Practices

Implement regular security training for users and administrators to raise awareness about XSS attacks.
Utilize web application firewalls and security plugins to detect and prevent XSS attempts.

Patching and Updates

Regularly monitor Moodle security advisories and apply patches promptly to mitigate known vulnerabilities.