MotoPress Hotel Booking Plugin up to 6.2.4 on WordPress Stripe Webhook webhook-listener.php ID cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in MotoPress Hotel Booking Plugin up to 6.2.4. This issue affects some unknown processing of the file webhook-listener.php of the component Stripe Webhook. The manipulation of the argument ID results in cross site scripting. This vulnerability is reported as CVE-2026-90650. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in MotoPress Hotel Booking Plugin up to 6.2.4. It has been classified as problematic. Affected is an unknown part of the file webhook-listener.php of the component Stripe Webhook. The manipulation of the argument id with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

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.

The advisory is shared for download at wordfence.com. This vulnerability is traded as CVE-2026-90650 since 09/13/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

By approaching the search of inurl:webhook-listener.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• WordPress Plugin

Vendor

• MotoPress

Name

• Hotel Booking Plugin

Version

• 6.2.0
• 6.2.1
• 6.2.2
• 6.2.3
• 6.2.4

CPE 2.3info

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CPE 2.2info

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