My Calendar Security Vulnerabilities - January

CVE-2019-15713

The my-calendar plugin before 3.1.10 for WordPress has XSS.

CVE-2021-24927

The My Calendar WordPress plugin before 3.2.18 does not sanitise and escape the callback parameter of the mc_post_lookup AJAX action (available to any authenticated user) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue

CVE-2022-47427

Cross-Site Request Forgery (CSRF) vulnerability in Joseph C Dolson My Calendar plugin <= 3.3.24.1 versions.

CVE-2023-23813

Cross-Site Request Forgery (CSRF) vulnerability in Joseph C Dolson My Calendar plugin <= 3.4.3 versions.

CVE-2024-1274

The My Calendar WordPress plugin before 3.4.24 does not sanitise and escape some parameters, which could allow users with a role as low as Subscriber to perform Cross-Site Scripting attacks (depending on the permissions set by the admin)