CVE-2026-13143 json
WP Travel < 11.8.1 - Unauthenticated Payment Bypass via Forged PayPal IPN
published 2026-07-30 3 mo ago modified 2026-07-30 3 mo ago also EUVD-2026-51007
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 23%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Unknown WP Travel 11.8.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/21bc82e3-4568-4e01-8704-88a242743402/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- Unknown WP Travel
Classification
- Weakness
-
- CWE-290 Authentication Bypass by Spoofing
- Technology feeds
References
-
wpscan.com
/vulnerability/21bc82e3-4568-4e01-8704-88a242743402/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-13143
- NVD CVE-2026-13143
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.