CVE-2021-38351 Explained : Impact and Mitigation

A detailed overview of the CVE-2021-38351 vulnerability affecting the OSD Subscribe WordPress plugin.

Understanding CVE-2021-38351

This section delves into the specifics of the OSD Subscribe plugin vulnerability.

What is CVE-2021-38351?

The OSD Subscribe WordPress plugin is susceptible to Reflected Cross-Site Scripting through the osd_subscribe_message parameter in the ~/options/osd_subscribe_options_subscribers.php file, enabling threat actors to insert malicious web scripts, impacting versions up to 1.2.3.

The Impact of CVE-2021-38351

The vulnerability possesses a CVSS base score of 6.1, indicating a medium severity level. It requires user interaction for exploitation and affects confidentiality and integrity with low privileges required and no availability impact.

Technical Details of CVE-2021-38351

Explore the technical aspects of the CVE-2021-38351 vulnerability in the OSD Subscribe plugin.

Vulnerability Description

The flaw in the plugin facilitates Reflected Cross-Site Scripting, exposing systems to arbitrary script injection.

Affected Systems and Versions

OSD Subscribe versions up to and including 1.2.3 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability via the osd_subscribe_message parameter, leading to the execution of malicious web scripts.

Mitigation and Prevention

Discover ways to mitigate the risks associated with CVE-2021-38351 in the OSD Subscribe WordPress plugin.

Immediate Steps to Take

It is recommended to uninstall the vulnerable plugin from the WordPress site to prevent exploitation.

Long-Term Security Practices

Ensure regular security audits, educate users on safe plugin usage, and stay updated with security best practices.

Patching and Updates

Stay vigilant for security patches and updates from the plugin developer to address and eliminate the vulnerability.