CVE-2021-34634 : Exploit Details and Defense Strategies

A detailed overview of CVE-2021-34634 focusing on the Nifty Newsletters WordPress plugin vulnerability.

Understanding CVE-2021-34634

This section delves into the impact, technical details, and mitigation strategies related to the CVE-2021-34634 vulnerability.

What is CVE-2021-34634?

The Nifty Newsletters WordPress plugin is susceptible to Cross-Site Request Forgery (CSRF) through the sola_nl_wp_head function, allowing threat actors to insert malicious web scripts in versions up to 4.0.23.

The Impact of CVE-2021-34634

The vulnerability's CVSS base score is 8.8, categorizing it as high severity with significant impacts on confidentiality, integrity, and availability. No user privileges are necessary for exploitation.

Technical Details of CVE-2021-34634

This section outlines the specific technical aspects of the vulnerability.

Vulnerability Description

The flaw in Nifty Newsletters plugin enables attackers to perform CSRF attacks leading to the injection of arbitrary web scripts.

Affected Systems and Versions

Versions including and prior to 4.0.23 of the Nifty Newsletters WordPress plugin are susceptible to this vulnerability.

Exploitation Mechanism

Attackers can exploit the vulnerability through the vulnerable sola_nl_wp_head function in the ~/sola-newsletters.php file.

Mitigation and Prevention

Learn about the necessary steps to address and prevent security risks associated with CVE-2021-34634.

Immediate Steps to Take

It is recommended to uninstall the Nifty Newsletters WordPress plugin to eliminate the risk of exploitation.

Long-Term Security Practices

Regular security audits, monitoring, and timely plugin updates are essential for maintaining a secure WordPress environment.

Patching and Updates

Stay informed about security patches and updates released by the plugin vendor to address known vulnerabilities.