CVE-2026-8608 Business logic in Event Monster – Event Manager, Ticket Booking & Registration
Unauthenticated attackers can bypass payment verification to obtain valid event tickets without paying, affecting Event Monster plugin users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8608?
CVE-2026-8608 is a medium-severity vulnerability in awordpresslife Event Monster – Event Manager, Ticket Booking & Registration, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Event Monster – Event Management, Events Calendar, Tickets plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in versions up to, and including, 2.1.0. This is due to the capture_payment() AJAX handler (registered via wp_ajax_nopriv_em_capture_payment) trusting client-supplied payment data — including transaction ID, amount, and payment status — without performing any server-side verification against the PayPal API or any other payment gateway, and without nonce or capability checks. This makes it possible for unauthenticated attackers to forge payment records, mark bookings as Completed, and obtain confirmation emails containing valid QR code tickets without making any actual payment.
Weakness: CWE-345
Which versions are affected by CVE-2026-8608?
How do I fix CVE-2026-8608?
No fix has been published for CVE-2026-8608 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-8608 being exploited?
There is no known exploitation of CVE-2026-8608 in the wild and no public exploit code.
Sources
Also known as GHSA-5vph-83m8-9635.