CVE-2021-24847 : Vulnerability Insights and Analysis

A SQL injection vulnerability was discovered in the SEO Redirection Plugin – 301 Redirect Manager WordPress plugin before version 8.2. This CVE allows any authenticated user to exploit the importFromRedirection AJAX action, leading to SQL injection when the redirection plugin is installed.

Understanding CVE-2021-24847

This CVE highlights a security issue in the SEO Redirection Plugin, potentially allowing attackers to manipulate SQL queries through a vulnerable parameter.

What is CVE-2021-24847?

The SEO Redirection Plugin before 8.2 is prone to an SQL injection vulnerability due to improper sanitization of user-supplied data.

The Impact of CVE-2021-24847

Exploitation of this vulnerability could result in unauthorized access to the WordPress site's database, sensitive information disclosure, or data manipulation.

Technical Details of CVE-2021-24847

The following technical details provide insight into the vulnerability and affected systems:

Vulnerability Description

The SQL injection vulnerability arises from the insecure handling of user inputs, allowing malicious actors to execute arbitrary SQL commands.

Affected Systems and Versions

The issue impacts SEO Redirection Plugin – 301 Redirect Manager versions prior to 8.2, leaving sites with earlier versions vulnerable to exploitation.

Exploitation Mechanism

Attackers can abuse the importFromRedirection AJAX action by inserting malicious SQL statements via the offset parameter, compromising the site's database.

Mitigation and Prevention

To address CVE-2021-24847 and enhance overall security posture, consider the following mitigation strategies:

Immediate Steps to Take

Update the SEO Redirection Plugin to version 8.2 or above to mitigate the SQL injection risk.
Monitor website logs for suspicious activities indicating a potential exploitation attempt.

Long-Term Security Practices

Implement input validation mechanisms to sanitize user inputs and prevent SQL injection attacks.
Regularly audit plugins and themes for security vulnerabilities that could jeopardize website integrity.

Patching and Updates

Stay informed about security patches released by plugin vendors and promptly apply updates to safeguard against known vulnerabilities.