# Exploit Title: WordPress Plugin EventON Calendar 4.4 - Unauthenticated Post Access via IDOR# Date: 03.08.2023# Exploit Author: Miguel Santareno# Vendor Homepage: https://www.myeventon.com/# Version: 4.4# Tested on: Google and Firefox latest version# CVE : CVE-2023-3219# 1. Description
The plugin does not validate that the event_id parameter in its eventon_ics_download ajax action is a valid Event, allowing unauthenticated visitors to access any Post (including unpublished or protected posts) content via the ics export functionality by providing the numeric id of the post.# 2. Proof of Concept (PoC)
Proof of Concept:
https://example.com/wp-admin/admin-ajax.php?action=eventon_ics_download&event_id=<any post id>