CVE-2021-25105 : What You Need to Know

A detailed overview of CVE-2021-25105, a vulnerability in the Ivory Search WordPress plugin.

Understanding CVE-2021-25105

This section delves into the specifics of the CVE-2021-25105 vulnerability in the Ivory Search WordPress plugin.

What is CVE-2021-25105?

The Ivory Search WordPress plugin before version 5.4.1 is prone to a Cross-Site Scripting (XSS) vulnerability. This flaw arises due to a lack of escaping in certain Form settings, enabling high-privilege users to execute XSS attacks even when the unfiltered_html capability is restricted.

The Impact of CVE-2021-25105

The vulnerability allows malicious actors with elevated permissions to inject and execute malicious scripts, potentially leading to unauthorized access, data theft, or further exploitation of the affected WordPress site.

Technical Details of CVE-2021-25105

Exploring the technical aspects and implications of the CVE-2021-25105 vulnerability.

Vulnerability Description

CVE-2021-25105 is classified as a CWE-79 Cross-site Scripting (XSS) vulnerability. It stems from inadequate input sanitization within the Ivory Search WordPress plugin, enabling attackers to inject malicious scripts into the Form settings.

Affected Systems and Versions

The vulnerability affects versions of Ivory Search WordPress plugin prior to 5.4.1.

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the lack of input validation in certain Form settings to inject and execute malicious scripts, bypassing security restrictions.

Mitigation and Prevention

Best practices to mitigate and prevent the exploitation of CVE-2021-25105.

Immediate Steps to Take

Update the Ivory Search WordPress plugin to version 5.4.1 or newer to patch the vulnerability.
Monitor user-generated content for any suspicious or potentially harmful scripts.

Long-Term Security Practices

Regularly update all installed plugins and themes to the latest versions to mitigate potential security risks.
Implement least privilege principles to restrict user permissions and minimize the impact of possible vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by plugin developers to address known vulnerabilities promptly.