CVE-2021-38354 : Exploit Details and Defense Strategies

The GNU-Mailman Integration WordPress plugin, up to and including version 1.0.6, is vulnerable to Reflected Cross-Site Scripting. This allows attackers to inject arbitrary web scripts via a specific parameter.

Understanding CVE-2021-38354

This section delves into what CVE-2021-38354 is, its impact, technical details, and mitigation strategies.

What is CVE-2021-38354?

The CVE-2021-38354 vulnerability involves Reflected Cross-Site Scripting in the GNU-Mailman Integration WordPress plugin, impacting versions up to 1.0.6.

The Impact of CVE-2021-38354

With a CVSS base score of 6.1 (Medium Severity), the vulnerability allows attackers to execute malicious scripts in the context of the victim's browser.

Technical Details of CVE-2021-38354

Let's explore the specifics of the CVE-2021-38354 vulnerability.

Vulnerability Description

The issue arises from the gm_error parameter in the ~/includes/admin/mailing-lists-page.php file, enabling script injection.

Affected Systems and Versions

GNU-Mailman Integration versions up to and including 1.0.6 are susceptible to this vulnerability.

Exploitation Mechanism

Attackers can exploit this issue by injecting crafted scripts through the gm_error parameter.

Mitigation and Prevention

Learn how to protect your systems from CVE-2021-38354.

Immediate Steps to Take

To mitigate the risk, uninstall the GNU-Mailman Integration plugin from your WordPress site.

Long-Term Security Practices

Regularly update your WordPress plugins and themes to prevent security vulnerabilities.

Patching and Updates

Stay informed about security patches and updates for the plugins you use to ensure a secure environment.