CVE-2026-13143
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductWP Travel
PublishedJul 30, 2026
First seenJul 30, 2026
Weakness typeCWE-290CWE-290
How to fix
Update
- WP Travel11.8.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| WP Travel | v < 11.8.1 | 11.8.1 |
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