CVE-2021-28975 : What You Need to Know

WordPress Mailster version 1.6.18.0 is vulnerable to a Cross-Site Scripting (XSS) attack that occurs when a victim accesses a mail server's details on the 'mst_servers' page, using malicious server_host, server_name, or connection_parameter parameters.

Understanding CVE-2021-28975

This CVE identifies a security vulnerability in WP Mailster version 1.6.18.0 that enables attackers to execute XSS attacks.

What is CVE-2021-28975?

The CVE-2021-28975 involves an XSS vulnerability in WP Mailster version 1.6.18.0, allowing threat actors to inject and execute malicious scripts when a user interacts with specific server details.

The Impact of CVE-2021-28975

Exploitation of this vulnerability can lead to unauthorized script execution within a user's browser, potentially leading to data theft, account compromise, or further security breaches on the affected WordPress site.

Technical Details of CVE-2021-28975

This section provides insights into the specifics of the vulnerability.

Vulnerability Description

The vulnerability in WP Mailster version 1.6.18.0 allows an attacker to perform XSS attacks by manipulating certain parameters related to mail server details.

Affected Systems and Versions

WP Mailster version 1.6.18.0 is confirmed to be affected by this XSS vulnerability.

Exploitation Mechanism

Threat actors can exploit this vulnerability by tricking a user into accessing crafted server_host, server_name, or connection_parameter parameters, which in turn execute malicious scripts.

Mitigation and Prevention

To safeguard systems from CVE-2021-28975, immediate actions and long-term security practices must be implemented.

Immediate Steps to Take

Users are advised to update WP Mailster to the latest non-vulnerable version and be cautious when interacting with mail server details to prevent XSS attacks.

Long-Term Security Practices

Employing robust input validation mechanisms and security testing procedures can mitigate the risk of XSS vulnerabilities in WordPress plugins.

Patching and Updates

Regularly applying security patches and staying informed about plugin vulnerabilities is crucial to maintaining a secure WordPress environment.