CVE-2023-3219

Description

The EventON WordPress plugin before 2.1.2 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its eventon_ics_download ajax action is a valid Event, allowing unauthenticated visitors to access any Post (including unpublished or protected posts) content via the ics export functionality by providing the numeric id of the post.

Affected products

• Unknown / EventON0 – 2.1.2

Exploits & proofs of concept

• exploit-dbWordpress Plugin EventON Calendar 4.4 - Unauthenticated Post Access via IDORby Miguel Santareno
• nucleiEventON Lite < 2.1.2 - Arbitrary File Downloadby r3Y3r53

References

• MISChttps://wpscan.com/vulnerability/72d80887-0270-4987-9739-95b1a178c1fd
• EXPLOIThttp://packetstormsecurity.com/files/173992/WordPress-EventON-Calendar-4.4-Insecure-Direct-Object-Reference.html