CVE-2021-25054 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2021-25054, a vulnerability in the WPcalc WordPress plugin version 2.1 that leads to an authenticated SQL Injection.

Understanding CVE-2021-25054

This section explains the impact, technical details, and mitigation strategies related to CVE-2021-25054.

What is CVE-2021-25054?

The WPcalc WordPress plugin version 2.1 is vulnerable to an authenticated SQL Injection due to unsanitized user input in the 'did' parameter, allowing attackers to manipulate SQL statements.

The Impact of CVE-2021-25054

The vulnerability could be exploited by authenticated users to execute malicious SQL queries, potentially compromising the integrity and confidentiality of the WordPress database.

Technical Details of CVE-2021-25054

Let's delve into the specifics of the vulnerability and how it can affect systems and versions.

Vulnerability Description

The flaw arises from the plugin's failure to properly sanitize user-supplied data, enabling SQL Injection when the 'did' parameter is utilized in SQL queries.

Affected Systems and Versions

WPcalc WordPress plugin versions less than or equal to 2.1 are impacted by this vulnerability, putting all installations of these versions at risk.

Exploitation Mechanism

Attackers with authenticated access can exploit the 'did' parameter to inject malicious SQL commands, potentially gaining unauthorized access to sensitive data.

Mitigation and Prevention

This section outlines the steps that organizations and users can take to mitigate the risks associated with CVE-2021-25054.

Immediate Steps to Take

It is essential to update the WPcalc WordPress plugin to a secure version, revoke unnecessary user privileges, and monitor database activities for suspicious behavior.

Long-Term Security Practices

Implement strict input validation, parameterized queries, and regular security audits to prevent SQL Injection vulnerabilities from arising in WordPress plugins.

Patching and Updates

Stay informed about security advisories from plugin vendors, promptly apply patches, and conduct regular vulnerability assessments to safeguard WordPress installations from potential threats.