CVE-2026-110653— Appointment Booking Plugin 5.7.4 认证绕过漏洞
一分钟漏洞结论
影响对象
latepoint Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress
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"Appointment Booking Plugin – LatePoint 因此，未认证的攻击者只要知晓目标客户已注册的电子邮件地址或电话号码，即可向 接口发起并发请求，突破锁定次数上限，对 6 位数的 OTP 验证码进行暴力破解，从而以目标 LatePoint 客户的身份完成身份验证。攻击者借此可获得对该客户账户、预约信息及个人数据的完全访问权限。 尽管该接口存在 令牌（nonce）检查机制，但无法缓解此问题，因为该 nonce 会通过未认证的 和 接口公开返回，任何未认证的攻击者均可
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一、 漏洞 CVE-2026-110653 基础信息
漏洞信息
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Vulnerability Title
Appointment Booking Plugin <= 5.7.4 - Unauthenticated Authentication Bypass via Race Condition on OTP Attempts Counter
来源: CVE Program / CVE List V5
Vulnerability Description
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Authentication Bypass via Race Condition in all versions up to, and including, 5.7.4. This is due to a non-atomic read-modify-write on the OTP verification attempts counter in the `verifyOTP` function: the counter is incremented using a stale in-memory value with no conditional `WHERE attempts < 10` guard on the `UPDATE` and no `SELECT ... FOR UPDATE` row lock, creating a TOCTOU window that allows concurrent requests to bypass the 10-attempt lockout. This makes it possible for unauthenticated attackers — who know a target customer's registered email address or phone number — to fire concurrent requests to the `auth__verify_otp` endpoint, defeat the lockout cap, brute-force the 6-digit OTP code, and authenticate as the targeted LatePoint customer, gaining full access to their account, bookings, and personal data. The nonce check present on the endpoint (`otp_verify_otp_nonce`) does not mitigate this issue, as the nonce is publicly emitted by the unauthenticated `request_otp` and `resend_otp` endpoints and is trivially obtainable by any unauthenticated attacker prior to launching the race.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| latepoint | Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress | 0 ~ 5.7.4 | - |
|
二、漏洞 CVE-2026-110653 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-110653 其他参考 (7)
IV. Related Vulnerabilities
Same vendor: latepoint
V. Comments for CVE-2026-110653
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