CVE-2021-24555 : What You Need to Know
Discover how CVE-2021-24555 impacts Diary & Availability Calendar plugin version 1.0.3 with an authenticated SQL Injection flaw. Learn mitigation steps and preventive measures for enhanced WordPress security.
A SQL Injection vulnerability was discovered in the Diary & Availability Calendar plugin version 1.0.3. This vulnerability allows any authenticated user to execute malicious SQL queries, leading to potential data breaches.
Understanding CVE-2021-24555
This CVE details an authenticated SQL Injection vulnerability in the Diary & Availability Calendar WordPress plugin.
What is CVE-2021-24555?
The vulnerability is due to the daac_delete_booking_callback function not properly sanitizing user input, allowing for SQL Injection attacks. Additionally, lacking CSRF protection makes it more accessible to attackers.
The Impact of CVE-2021-24555
The exploitation of this vulnerability can lead to unauthorized access, data manipulation, and potentially a full compromise of the affected WordPress site.
Technical Details of CVE-2021-24555
This section covers the specifics of the vulnerability.
Vulnerability Description
The issue lies in the daac_delete_booking_callback function, which does not adequately validate and sanitize input, enabling attackers to inject malicious SQL code.
Affected Systems and Versions
Diary & Availability Calendar plugin versions up to and including 1.0.3 are impacted by this security flaw.
Exploitation Mechanism
Attackers can exploit this issue by sending crafted HTTP requests containing malicious SQL payloads to the vulnerable AJAX action.
Mitigation and Prevention
To secure your WordPress site from this vulnerability, follow these guidelines:
Immediate Steps to Take
- Disable or remove the vulnerable Diary & Availability Calendar plugin version 1.0.3.
- Monitor for any unauthorized access or suspicious activities on your website.
Long-Term Security Practices
- Regularly update all plugins and themes to the latest versions.
- Implement strict input validation and sanitization practices in your code to prevent SQL Injection attacks.
Patching and Updates
Check the plugin's official website or repository for any security patches or fixed versions addressing this vulnerability.