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OpenAdvisories
Medium · 5.3 CVE-2026-13143 EUVD-2026-51007GHSA-vx7q-rhxw-6x3x

WP Travel < 11.8.1 - Unauthenticated Payment Bypass via Forged PayPal IPN

Published Jul 30, 2026 · Updated Jul 30, 2026 · Assigned by WPScan

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.

Affected products

VendorProductAffectedFixed
— WP Travel < 11.8.1 11.8.1

References