CVE-2018-20755 : What You Need to Know

MODX Revolution through v2.7.0-pl allows XSS via the User Photo field.

Understanding CVE-2018-20755

An XSS vulnerability in MODX Revolution up to version v2.7.0-pl can be exploited by manipulating the User Photo field.

What is CVE-2018-20755?

This CVE identifies a cross-site scripting (XSS) vulnerability in MODX Revolution versions up to v2.7.0-pl, which can be abused through the User Photo field.

The Impact of CVE-2018-20755

The vulnerability allows attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2018-20755

MODX Revolution through v2.7.0-pl is susceptible to XSS attacks through the User Photo field.

Vulnerability Description

The XSS vulnerability arises from inadequate input validation in the User Photo field, enabling attackers to inject and execute malicious scripts.

Affected Systems and Versions

Product: MODX Revolution
Versions affected: up to v2.7.0-pl

Exploitation Mechanism

Attackers can exploit this vulnerability by inserting malicious code into the User Photo field, which gets executed when viewed by other users.

Mitigation and Prevention

Immediate action is crucial to mitigate the risks posed by CVE-2018-20755.

Immediate Steps to Take

Disable or restrict access to the User Photo field if not essential.
Implement input validation and sanitization to prevent script injection.
Regularly monitor and audit user-generated content for malicious code.

Long-Term Security Practices

Educate users on safe browsing habits and recognizing suspicious content.
Keep systems and software updated to patch known vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates provided by MODX Revolution to address the XSS vulnerability.