The Modern Events Calendar plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 7.12.1 via the 'mec_fes_form' AJAX function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
| Software | From | Fixed in |
|---|---|---|
| webnus / modern_events_calendar | - | 7.13.0 |
| webnus / modern_events_calendar_lite | - | 7.13.0 |