CVE-2021-34644 : Exploit Details and Defense Strategies
Learn about CVE-2021-34644 affecting Multiplayer Games plugin <= 3.7. Discover impact, technical details, and mitigation steps to prevent Reflected Cross-Site Scripting attacks.
The Multiplayer Games WordPress plugin version 3.7 and below is susceptible to Reflected Cross-Site Scripting, allowing malicious actors to inject arbitrary web scripts. This vulnerability was made public on August 13, 2021.
Understanding CVE-2021-34644
This section delves into the impact, technical details, and mitigation strategies related to the CVE-2021-34644 vulnerability.
What is CVE-2021-34644?
The CVE-2021-34644 vulnerability pertains to the Multiplayer Games WordPress plugin, enabling attackers to execute Reflected Cross-Site Scripting attacks by leveraging $_SERVER['PHP_SELF'] in the ~/multiplayergames.php file.
The Impact of CVE-2021-34644
With a CVSS base score of 6.1, this Medium severity vulnerability requires user interaction to be exploited. If successfully leveraged, attackers can inject and execute arbitrary web scripts, potentially leading to compromise of user data and system integrity.
Technical Details of CVE-2021-34644
Let's explore the specific technical aspects of CVE-2021-34644.
Vulnerability Description
The vulnerability arises from improper input validation within the Multiplayer Games WordPress plugin, allowing for the injection of malicious scripts through the PHP_SELF superglobal variable.
Affected Systems and Versions
The issue impacts versions of the Multiplayer Games plugin up to and including 3.7.
Exploitation Mechanism
The vulnerability can be exploited remotely with low attack complexity over a network, requiring user interaction for successful execution.
Mitigation and Prevention
To safeguard systems from CVE-2021-34644, immediate action is required along with long-term security practices.
Immediate Steps to Take
It is strongly advised to uninstall the Multiplayer Games WordPress plugin to mitigate the risk of exploitation.
Long-Term Security Practices
Ensure regular security audits, employ secure coding practices, and keep software up to date to prevent similar vulnerabilities.
Patching and Updates
Stay informed about security advisories and promptly apply patches released by the plugin developer or the WordPress community.