EUVD-2026-78574
GHSA-mgqr-689v-35jg
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Primary rating from Vendor (Wordfence).
CVSS VectorNVD
Lifecycle Timeline
2DescriptionNVD
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.
AnalysisAI
Stored cross-site scripting in the MotoPress Hotel Booking premium Stripe gateway lets unauthenticated attackers plant persistent JavaScript in the plugin's payment log by POSTing forged Stripe webhook events, because the webhook listener only verifies the Stripe signature when an optional signing secret has been configured — and that secret is empty by default, so forged events are accepted without cryptographic verification. The attacker-controlled event object 'id' is written unescaped and later echoed unsanitized on the payment edit page, executing in an administrator's browser session. …
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External POC / Exploit Code
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