CVE-2026-13143

MEDIUM

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

Title source: cna

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.

References (1)

Core 1

Core References

Exploit exploit vdb-entry technical-description

https://wpscan.com/vulnerability/21bc82e3-4568-4e01-8704-88a242743402/

Scores

CVSS v3 5.3

EPSS 0.0015

EPSS Percentile 4.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-290

Status published

Products (1)

None/WP Travel < 11.8.1

Published Jul 30, 2026

Tracked Since Jul 30, 2026