Unrated severityNVD Advisory· Published Jul 30, 2026· Updated Jul 30, 2026
WP Travel < 11.8.1 - Unauthenticated Payment Bypass via Forged PayPal IPN
CVE-2026-13143
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.
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Affected products
1Patches
Vulnerability mechanics
References
1- wpscan.com/vulnerability/21bc82e3-4568-4e01-8704-88a242743402/mitreexploitvdb-entrytechnical-description
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