CVE-2021-24843 : Security Advisory and Response

A detailed overview of CVE-2021-24843, a vulnerability in the SupportCandy WordPress plugin that could lead to arbitrary ticket deletion via CSRF.

Understanding CVE-2021-24843

This section provides insights into the nature and impact of the CVE-2021-24843 vulnerability.

What is CVE-2021-24843?

The SupportCandy WordPress plugin before version 2.2.7 lacks CSRF protection in its wpsc_tickets AJAX action, enabling malicious actors to manipulate logged-in admin sessions for unauthorized ticket deletions.

The Impact of CVE-2021-24843

The vulnerability poses a significant security risk by allowing attackers to exploit the plugin's lack of CSRF validation, potentially resulting in the deletion of arbitrary tickets without proper authorization.

Technical Details of CVE-2021-24843

Explore the specific technical aspects of the CVE-2021-24843 vulnerability to understand its implications.

Vulnerability Description

SupportCandy's version prior to 2.2.7 fails to implement CSRF checks adequately in the wpsc_tickets AJAX action, creating a loophole for attackers to abuse the feature and delete tickets illegitimately.

Affected Systems and Versions

The vulnerability affects SupportCandy - Helpdesk & Support Ticket System versions earlier than 2.2.7, leaving them exposed to potential CSRF-based attacks.

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating the set_delete_permanently_bulk_ticket setting_action, tricking the plugin to allow unauthorized ticket removal.

Mitigation and Prevention

Discover the essential steps to mitigate the risks associated with CVE-2021-24843 and prevent potential security breaches.

Immediate Steps to Take

Website administrators are advised to update SupportCandy to version 2.2.7 or later promptly to patch the CSRF vulnerability and enhance security measures.

Long-Term Security Practices

Implement robust CSRF protections and maintain regular security audits to strengthen the resilience of WordPress plugins against potential vulnerabilities like CVE-2021-24843.

Patching and Updates

Stay informed about security patches and plugin updates released by SupportCandy to address known vulnerabilities and reinforce the overall security posture of WordPress installations.