CVE-2018-17556 Explained : Impact and Mitigation

MODX Revolution v2.6.5-pl allows stored XSS via a Create New Media Source action.

Understanding CVE-2018-17556

The vulnerability in MODX Revolution v2.6.5-pl enables the occurrence of stored XSS.

What is CVE-2018-17556?

This CVE identifies a vulnerability in MODX Revolution v2.6.5-pl that allows for stored cross-site scripting (XSS) attacks through the Create New Media Source action.

The Impact of CVE-2018-17556

The vulnerability could be exploited by attackers to inject malicious scripts into web pages viewed by other users, leading to potential data theft, unauthorized actions, or account compromise.

Technical Details of CVE-2018-17556

The technical aspects of the CVE.

Vulnerability Description

The Create New Media Source action in MODX Revolution v2.6.5-pl allows for the occurrence of stored XSS, posing a security risk.

Affected Systems and Versions

Affected Version: MODX Revolution v2.6.5-pl

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts through the Create New Media Source action, potentially compromising user data and system integrity.

Mitigation and Prevention

Steps to address the CVE.

Immediate Steps to Take

Disable or restrict access to the Create New Media Source action in MODX Revolution v2.6.5-pl.
Regularly monitor and audit user-generated content for suspicious scripts.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS attacks.
Educate users on safe browsing practices and the risks of executing untrusted scripts.

Patching and Updates

Apply security patches and updates provided by MODX to address the vulnerability and enhance system security.