CVE-2021-24584 : Exploit Details and Defense Strategies

A vulnerability labeled as CVE-2021-24584 has been identified in the Timetable and Event Schedule WordPress plugin version 2.4.2 and below. This vulnerability allows users with the edit_posts capability to update arbitrary timeslots from any event due to improper access control during timeslot updates. Additionally, the lack of CSRF checks enables attacks via CSRF by logged-in users with edit_posts capability. Versions prior to 2.3.19 are also susceptible to Stored XSS issues.

Understanding CVE-2021-24584

This section delves into what CVE-2021-24584 entails.

What is CVE-2021-24584?

The CVE-2021-24584 vulnerability affects the Timetable and Event Schedule WordPress plugin versions prior to 2.4.2, allowing unauthorized users to modify event timeslots.

The Impact of CVE-2021-24584

The vulnerability enables users with a certain capability to update timeslots and poses a risk of Stored XSS issues in earlier versions.

Technical Details of CVE-2021-24584

This section provides technical insights into CVE-2021-24584.

Vulnerability Description

The lack of access control and CSRF checks in the affected versions allows unauthorized users to update event timeslots and potentially execute Stored XSS attacks.

Affected Systems and Versions

The Timetable and Event Schedule WordPress plugin versions prior to 2.4.2 are vulnerable to this issue.

Exploitation Mechanism

Attackers with the edit_posts capability can exploit this vulnerability to manipulate timeslots and conduct CSRF attacks.

Mitigation and Prevention

Learn how to mitigate CVE-2021-24584 and prevent similar vulnerabilities.

Immediate Steps to Take

Users are advised to update the Timetable and Event Schedule plugin to version 2.4.2 or newer to mitigate the risk of unauthorized timeslot updates and XSS attacks.

Long-Term Security Practices

Regularly update plugins and implement proper access controls to enhance the security of WordPress websites.

Patching and Updates

Keep track of security patches and updates released by the plugin developer to address vulnerabilities and ensure website security.