CVE-2026-18042Network attack vector

Unauthenticated booking payment cancellation via missing authorization

Published Sep 9, 2026 · Updated Sep 9, 2026

Missing authorization in WP Travel before 12.0.2 allows remote attackers to cancel payment on any customer's booking. The front-end payment-message handler accepts a targeted booking and performs the cancellation without verifying that the requester is authorized to act on it. No account or user interaction is required, and the demonstrated consequence is limited to changing the targeted booking's payment state.

CVSS severity5.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in WP Travel before 12.0.2 allows remote attackers to cancel payment on any customer's booking. The front-end payment-message handler accepts a targeted booking and performs the cancellation without verifying that the requester is authorized to act on it. No account or user interaction is required, and the demonstrated consequence is limited to changing the targeted booking's payment state.

The record

CVE
CVE-2026-18042
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
WP Travel
Product
WP Travel
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <12.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP Travel · WP Travelversion=0 <12.0.2

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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