CVE-2026-15152

Hotel Booking <= 2.3.1 - Unauthenticated Payment Bypass

2026-07-09 00:00

Strategic Overview

Status: Patched in 2.3.2
Affected Plugin: WP Hotel Booking
Affected Version: <= 2.3.1
CVSS: 5.3Medium
Weakness type: CWE-345 · Insufficient Verification of Data Authenticity
CVE: CVE-2026-15152

View all WP Hotel Booking vulnerabilities

At a glance

CVE-2026-15152 is a medium-severity Insufficient Verification of Data Authenticity vulnerability in the WP Hotel Booking WordPress plugin, affecting versions <= 2.3.1. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.3.2; sites on affected versions should update now. Disclosed July 2026, reported by Muni Nitish Kumar Yaddala.

Vulnerability Overview

The Hotel Booking plugin for WordPress is vulnerable to Payment Bypass in versions up to, and including, 2.3.1. This is due to missing validation of the IPN receiver email against the configured merchant PayPal account, allowing spoofed IPN payloads to trigger booking completion without a real payment. This makes it possible for unauthenticated attackers to mark arbitrary hotel bookings as paid by sending a crafted PayPal IPN notification, bypassing actual payment.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-345: Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Remediation

Update to version 2.3.2, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: WP Hotel Booking 2.3.2 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-15152 https://www.wordfence.com/threat-intel/vulnerabilities/id/0c4d61ad-2375-4e5c-b047-cb345388f5e9 https://nvd.nist.gov/vuln/detail/CVE-2026-15152

Related records

Same weakness class

5.3CVE-2026-11901: WP Hotel Booking Insufficient Verification of DataCVE-2026-11901

Other vulnerabilities in WP Hotel Booking

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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