CVE-2026-13143

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

Published Jul 30, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-290
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Wp Travel
Wp Travel wp Travel
Vendors & Products Wordpress
Wordpress wordpress
Wp Travel
Wp Travel wp Travel
Type Values Removed Values Added
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.
Title WP Travel < 11.8.1 - Unauthenticated Payment Bypass via Forged PayPal IPN
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Jul 30, 2026, 4:05 PM
Reserved
Jun 24, 2026, 9:11 AM
Status
Deferred
Published
Jul 30, 2026, 6:24 AM
Modified
Jul 30, 2026, 4:45 PM