CVE-2021-3340 : What You Need to Know

A cross-site scripting (XSS) vulnerability found in various versions of Wikindx before 5.7.0 and from 6.x to 6.4.0 can enable remote attackers to inject malicious web script or HTML through specific parameters in URLs.

Understanding CVE-2021-3340

This section will provide an insight into the nature and impact of the CVE-2021-3340 vulnerability.

What is CVE-2021-3340?

The CVE-2021-3340 vulnerability is an XSS security flaw present in multiple versions of the Wikindx software that allows hackers to insert harmful web scripts or HTML content via certain parameters in the URL.

The Impact of CVE-2021-3340

The vulnerability can result in remote attackers executing malicious scripts, stealing sensitive data, manipulating web content, or performing unauthorized actions on the affected systems.

Technical Details of CVE-2021-3340

In this section, we will delve into the specifics of the CVE-2021-3340 vulnerability.

Vulnerability Description

The XSS vulnerability in Wikindx versions prior to 5.7.0 and between 6.x to 6.4.0 permits cybercriminals to inject arbitrary web scripts or HTML via the message parameter in index.php and DELETEIMAGES.php.

Affected Systems and Versions

The issue affects all instances of Wikindx before version 5.7.0 and versions 6.x through 6.4.0.

Exploitation Mechanism

Hackers can exploit this vulnerability by sending crafted URLs containing malicious script payloads to the affected applications to execute unauthorized actions.

Mitigation and Prevention

This section provides guidance on mitigating and securing systems from the CVE-2021-3340 vulnerability.

Immediate Steps to Take

Users must update their Wikindx installations to versions beyond 6.4.0 to patch the XSS vulnerability and prevent attacks exploiting this issue.

Long-Term Security Practices

Implement regular security audits, educate users about safe URL handling, and employ web application firewalls to defend against XSS attacks effectively.

Patching and Updates

Stay informed about security patches released by Wikindx developers and promptly apply updates to safeguard systems from known vulnerabilities.