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CVE-2026-90650— MotoPress Hotel Booking <= 6.2.4 - Unauthenticated Stored Cross-Site Scripting via Stripe Webhook Event Object 'id'

Quick assessment

Affected
jetmonsters MotoPress Hotel Booking
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的 MotoPress Hotel Booking 插件在 6.2.4 及之前所有版本中，由于输入验证不足和输出转义不当，存在存储型跨站脚本（Stored XSS）漏洞。该漏洞位于 Stripe Webhook 事件对象的 'id' 字段中。这使得未认证的攻击者能够向页面注入任意 Web 脚本，一旦用户访问被注入的页面，脚本将立即执行。 该插件的高级版 Stripe Webhook 监听器仅在配置了可选的 Stripe 签名密钥时才验证 Webhook 签名；由于该密钥默认情况下为空，伪造的 W

CVSS 7.2 · High

Possible ATT&CK Techniques 1 AI

T1195 · Supply Chain Compromise
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I. Basic Information for CVE-2026-90650

Vulnerability Information
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Vulnerability Title
MotoPress Hotel Booking <= 6.2.4 - Unauthenticated Stored Cross-Site Scripting via Stripe Webhook Event Object 'id'
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jetmonsters MotoPress Hotel Booking 0 ~ 6.2.4 -

II. Public POCs for CVE-2026-90650

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III. Intelligence Information for CVE-2026-90650

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Security Blog Posts for CVE-2026-90650 (1)

Vendor Pages for CVE-2026-90650 (2)

Other References for CVE-2026-90650 (1)

IV. Related Vulnerabilities

Same product: MotoPress Hotel Booking
Same vendor: jetmonsters
Same weakness: CWE-79

V. Comments for CVE-2026-90650

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