CVE-2018-20758 : Security Advisory and Response

MODX Revolution up to version 2.7.0-pl is vulnerable to cross-site scripting (XSS) attacks through User Settings, specifically the Description field.

Understanding CVE-2018-20758

This CVE entry highlights a security issue in MODX Revolution that allows for XSS attacks.

What is CVE-2018-20758?

CVE-2018-20758 is a vulnerability in MODX Revolution versions up to 2.7.0-pl that can be exploited to execute XSS attacks via the Description field in User Settings.

The Impact of CVE-2018-20758

The vulnerability can lead to unauthorized execution of scripts in a user's browser, potentially compromising sensitive data or performing malicious actions.

Technical Details of CVE-2018-20758

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

MODX Revolution through v2.7.0-pl is susceptible to XSS attacks through User Settings, particularly the Description field.

Affected Systems and Versions

Product: MODX Revolution
Versions affected: Up to 2.7.0-pl

Exploitation Mechanism

The vulnerability can be exploited by injecting malicious scripts into the Description field of User Settings.

Mitigation and Prevention

Protecting systems from CVE-2018-20758 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update MODX Revolution to a patched version that addresses the XSS vulnerability.
Educate users to avoid inputting untrusted data in the Description field.

Long-Term Security Practices

Regularly monitor and update web application security measures.
Implement input validation and output encoding to prevent XSS attacks.

Patching and Updates

Ensure timely installation of security patches and updates for MODX Revolution to mitigate the risk of XSS attacks.