CVE-2017-17092 : Vulnerability Insights and Analysis

WordPress versions prior to 4.9.1 have a vulnerability in the wp-includes/functions.php file that allows remote attackers to exploit a cross-site scripting (XSS) vulnerability by uploading specifically crafted .js files without the need for the unfiltered_html capability.

Understanding CVE-2017-17092

This CVE entry describes a security vulnerability in WordPress versions before 4.9.1 that could be exploited by remote attackers for cross-site scripting (XSS) attacks.

What is CVE-2017-17092?

WordPress before version 4.9.1 is susceptible to a vulnerability in the wp-includes/functions.php file, enabling attackers to perform XSS attacks by uploading malicious .js files without requiring the unfiltered_html capability.

The Impact of CVE-2017-17092

This vulnerability allows remote attackers to execute cross-site scripting attacks, potentially compromising the security and integrity of WordPress websites.

Technical Details of CVE-2017-17092

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

Vulnerability Description

The vulnerability in wp-includes/functions.php in WordPress versions before 4.9.1 allows for XSS attacks via crafted .js file uploads without the unfiltered_html capability.

Affected Systems and Versions

Affected Version: WordPress versions before 4.9.1

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading specially crafted .js files without needing the unfiltered_html capability.

Mitigation and Prevention

Protect your systems and mitigate the risks associated with CVE-2017-17092.

Immediate Steps to Take

Update WordPress to version 4.9.1 or later to patch the vulnerability.
Regularly monitor and review file uploads to detect any suspicious activities.

Long-Term Security Practices

Implement web application firewalls to filter and monitor incoming traffic for potential threats.
Educate users on safe file upload practices and the risks associated with malicious file uploads.

Patching and Updates

Stay informed about security updates and patches released by WordPress to address vulnerabilities like CVE-2017-17092.