CVE-2026-13143

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

Medium · published July 30, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
21.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00304 · 21.9th percentile
Published
2026-07-30T06:00Z
EPSS history
Timeline
  • 30 JUL 06:00Z
    WP Travel < 11.8.1 - Unauthenticated Payment Bypass via Forged PayPal IPN
    cvelistv5