medium5.3
CVE-2026-13143
The WP Travel WordPress plugin before 11.8.1 does not verify PayPal Instant Payment Notifications through the PayPal post-back handshake before marking a booki…
Impact
The WP Travel WordPress plugin before 11.8.1 does not verify PayPal Instant Payment Notifications through the PayPal post-back handshake before marking a booking paid, allowing unauthenticated attackers to forge a notification that flips an arbitrary pending booking to a paid and booked state at an attacker-chosen amount.
Affected products
| Product | Affected versions |
|---|---|
| WP Travel WordPress Plugin | before 11.8.1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.