CVE-2018-3735 : What You Need to Know

This CVE involves a vulnerability in the bracket-template node module by HackerOne that allows for potential reflected XSS attacks.

Understanding CVE-2018-3735

This CVE was published on April 26, 2018, and is related to a reflected XSS vulnerability in the bracket-template node module.

What is CVE-2018-3735?

The bracket-template feature is susceptible to reflected XSS attacks when a variable passed through a GET parameter is used in the template.

The Impact of CVE-2018-3735

This vulnerability could allow attackers to execute malicious scripts in the context of a user's browser, potentially leading to unauthorized access or data theft.

Technical Details of CVE-2018-3735

This section provides more technical insights into the CVE.

Vulnerability Description

The bracket-template node module is vulnerable to reflected XSS when a GET parameter variable is directly inserted into the template.

Affected Systems and Versions

Product: bracket-template node module
Vendor: HackerOne
Versions affected: Up to and including 1.1.5

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious link containing the XSS payload and tricking a user into clicking it, thereby executing the script in the user's browser.

Mitigation and Prevention

Protecting systems from CVE-2018-3735 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the bracket-template node module to a version beyond 1.1.5 to mitigate the vulnerability.
Avoid passing unsanitized user input directly into templates.

Long-Term Security Practices

Implement input validation and output encoding to prevent XSS attacks.
Educate developers on secure coding practices to avoid similar vulnerabilities.

Patching and Updates

Regularly check for security updates and patches for the bracket-template node module to address any newly discovered vulnerabilities.