CVE-2026-90650
HighCVSS 7.2Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
The MotoPress Hotel Booking plugin for WordPress in all versions up to and including 6.2.4 is vulnerable to Stored Cross-Site Scripting via the Stripe Webhook event object 'id' due to insufficient input sanitization and output escaping. The premium Stripe webhook listener only verifies the webhook signature when an optional Stripe signing secret has been configured; because that secret is empty by default, a forged webhook is accepted without cryptographic verification, and the attacker-controlled event object 'id' is written unescaped into the payment log and later echoed unsanitized when an administrator views the payment.
Risk Assessment
An unauthenticated attacker can inject arbitrary scripts into pages that execute when a user accesses them. The attacker must know a valid Stripe PaymentIntent ID for an existing payment to route the forged webhook to a payment record.
Recommendation
Update the MotoPress Hotel Booking plugin to a version later than 6.2.4. Configure a Stripe signing secret to enforce cryptographic webhook verification.
Other vulnerabilities in MotoPress Hotel Booking
See all- CVE-2026-15238Medium
The MotoPress Hotel Booking WordPress plugin before 6.2.3 does not verify record ownership before updating customer records, allowing any authenticated user with a low-privileged account (Subscriber and above) to modify or overwrite the personal data of any customer by supplying an arbitrary identifier.
- CVE-2026-15237Medium
The MotoPress Hotel Booking WordPress plugin before 6.2.3 does not perform any authorization or ownership check on a REST endpoint that creates payment records, allowing unauthenticated users to create completed payment records against arbitrary bookings and falsely mark them as paid.
- CVE-2026-8684Medium
The MotoPress Hotel Booking plugin for WordPress up to version 6.0.1 is vulnerable to authorization bypass. Unauthenticated attackers can overwrite or delete the internal notes (_mphb_booking_internal_notes) of any booking by supplying an arbitrary booking ID. The nonce is output in the HTML source of every public page, so any visitor can obtain a valid nonce and perform the action without an account.
Original NVD description (English source)
The MotoPress Hotel Booking plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Stripe Webhook event object 'id' in all versions up to, and including, 6.2.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The premium Stripe webhook listener only verifies the webhook signature when an optional Stripe signing secret has been configured; because that secret is empty by default, a forged webhook is accepted without cryptographic verification, and the attacker-controlled event object 'id' (e.g. a forged 'refund.created' refund id) is written unescaped into the payment log and later echoed unsanitized when an administrator views the payment. An attacker must know a valid Stripe PaymentIntent ID for an existing payment to route the forged webhook to a payment record. Note: The vulnerable webhook handler (webhook-listener.php) is part of the premium Stripe gateway integration and is not present in the lite plugin directory.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS