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CVE-2026-6286— Booking插件 2.2 存储型跨站脚本漏洞

一分钟漏洞结论

影响对象
melograno Booking for Appointments and Events Calendar – Amelia
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

WordPress 插件“预约与活动日历 – Amelia”在 2.2 版本及更早版本中，通过客户姓名字段存在存储型跨站脚本（Stored XSS）漏洞。其成因在于认证绕过：AddBookingCommand 显式跳过了 nonce 校验（见 Command.php 第 186 行），使得未认证用户也能提交预约数据。虽然插件对客户 firstName 和 lastName 字段应用了 sanitize_text_field()（见 BookingApplicationService.php 第 302-308 行）

CVSS 7.2 · High

可能的 ATT&CK 技术 1 AI

T1189 · Drive-by Compromise
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一、 漏洞 CVE-2026-6286 基础信息

漏洞信息
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Vulnerability Title
Booking for Appointments and Events Calendar <= 2.2 - Unauthenticated Stored Cross-Site Scripting via Customer Name Fields in Booking Submission
来源: CVE Program / CVE List V5
Vulnerability Description
The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to Stored Cross-Site Scripting via customer name fields in versions up to and including 2.2. This is due to an authentication bypass where the AddBookingCommand explicitly skips nonce verification (Command.php line 186), allowing unauthenticated users to submit booking data. While the plugin applies sanitize_text_field() to customer firstName and lastName fields (BookingApplicationService.php lines 302-308), this function only removes HTML tags and preserves special characters including double quotes. The vulnerability manifests in the administrative Calendar view where a FullCalendar eventContent callback interpolates customer names directly into JavaScript template literals (redesign/dist/index.js line 199) and renders them via innerHTML without proper HTML entity encoding. Because double quotes are preserved, an attacker can inject payloads like '" onmouseover="alert(document.cookie)"' to break out of the title attribute and inject malicious event handlers. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that will execute when an administrator accesses the Calendar page and hovers over the malicious appointment.
来源: 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
来源: 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)
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
melograno Booking for Appointments and Events Calendar – Amelia 0 ~ 2.2 -

二、漏洞 CVE-2026-6286 的公开POC

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三、漏洞 CVE-2026-6286 的情报信息

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CVE-2026-6286 其他参考 (8)

IV. Related Vulnerabilities

Same product: Booking for Appointments and Events Calendar – Amelia
Same vendor: melograno
Same weakness: CWE-79

V. Comments for CVE-2026-6286

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