CVE-2021-24728 : Security Advisory and Response
Learn about CVE-2021-24728, an Authenticated SQL Injection vulnerability in Membership & Content Restriction – Paid Member Subscriptions plugin, affecting versions prior to 2.4.2. Find mitigation steps to secure your WordPress site.
A detailed overview of the CVE-2021-24728 vulnerability affecting the Membership & Content Restriction – Paid Member Subscriptions WordPress plugin.
Understanding CVE-2021-24728
This CVE relates to an Authenticated SQL Injection vulnerability found in the Paid Member Subscriptions plugin before version 2.4.2, allowing attackers to execute SQL injection attacks on the Members and Payments pages.
What is CVE-2021-24728?
The vulnerability arises from the plugin's failure to properly sanitize, validate, or escape user input in certain SQL statements, granting authenticated users the ability to manipulate SQL queries.
The Impact of CVE-2021-24728
Exploitation of this vulnerability could lead to unauthorized access, data theft, or further compromise of the affected WordPress sites. Attackers with user credentials can execute malicious SQL queries.
Technical Details of CVE-2021-24728
This section outlines specific technical aspects of the vulnerability.
Vulnerability Description
The flaw allows authenticated users to perform SQL injection attacks on the Members and Payments pages by manipulating the order and orderby parameters.
Affected Systems and Versions
The vulnerability impacts WordPress sites using Paid Member Subscriptions plugin versions prior to 2.4.2.
Exploitation Mechanism
By crafting specific SQL injection payloads within the order and orderby parameters, authenticated users can inject malicious code into SQL queries, potentially gaining unauthorized access.
Mitigation and Prevention
Discover ways to mitigate and prevent the exploitation of CVE-2021-24728.
Immediate Steps to Take
- Upgrade to Paid Member Subscriptions version 2.4.2 or newer to eliminate the vulnerability.
- Monitor site activity for any signs of unauthorized access or suspicious behavior.
Long-Term Security Practices
- Regularly update WordPress plugins and themes to stay protected against known vulnerabilities.
- Implement strict input validation and output encoding practices to prevent SQL injection attacks.
Patching and Updates
Stay informed about security updates and patches released by plugin developers and promptly apply them to ensure ongoing protection.