CVE-2020-14063 : Security Advisory and Response

A stored Cross-Site Scripting (XSS) vulnerability in the TC Custom JavaScript plugin before 1.2.2 for WordPress allows unauthenticated remote attackers to inject arbitrary JavaScript via the tccj-content parameter. This can be displayed in the page footer of every front-end page and executed in the browser of visitors.

Understanding CVE-2020-14063

This CVE identifies a specific vulnerability in the TC Custom JavaScript plugin for WordPress.

What is CVE-2020-14063?

The CVE-2020-14063 is a stored Cross-Site Scripting (XSS) vulnerability in the TC Custom JavaScript plugin for WordPress, enabling attackers to inject malicious JavaScript code.

The Impact of CVE-2020-14063

This vulnerability allows unauthenticated remote attackers to execute arbitrary JavaScript on the browsers of visitors, potentially leading to various security risks and attacks.

Technical Details of CVE-2020-14063

The technical aspects of the vulnerability are as follows:

Vulnerability Description

Type: Stored Cross-Site Scripting (XSS)
Plugin Version: Before 1.2.2
Attack Vector: Remote
Parameter: tccj-content

Affected Systems and Versions

Affected Plugin: TC Custom JavaScript
Versions: Before 1.2.2

Exploitation Mechanism

Attackers exploit the vulnerability by injecting malicious JavaScript code via the tccj-content parameter, which is then executed in the browsers of site visitors.

Mitigation and Prevention

To address CVE-2020-14063, consider the following mitigation strategies:

Immediate Steps to Take

Update the TC Custom JavaScript plugin to version 1.2.2 or later.
Monitor website activity for any signs of unauthorized JavaScript execution.

Long-Term Security Practices

Regularly audit and review plugins for security vulnerabilities.
Educate users on safe coding practices to prevent XSS attacks.

Patching and Updates

Stay informed about security patches and updates for all installed plugins.
Implement a robust security policy to prevent and mitigate XSS vulnerabilities.