# Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress：認証の回避

- ID: CVE-2026-110653
- 製品: Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress
- 重要度: 緊急
- CVSS: 9.1
- 悪用状況: 未確認（悪用がないことを意味しません）
- 公開日時: 2026-10-16T18:16:28.480Z
- 情報源の更新日時: 2026-10-19T06:16:45.150Z
- このサイトの取得日時: 2026-10-22T13:59:06.830Z

## 概要
Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPressに認証の回避に関する脆弱性情報があります。影響を受ける条件を確認してください。

## どんな危険？
ログインなどの認証を回避され、不正な操作につながる可能性があります。

## 対象バージョン
- Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress: \<= 5.7.4

## 修正版
不明。修正版がないことを意味しません。

## 対策
1. 使っている製品名・バージョン・構成を、影響を受ける条件と照合してください。
2. 修正版や回避策は原文で確認してください。影響範囲の上限から修正版を推測しないでください。
3. 更新後は稼働中のバージョンと動作を確認してください。管理を委託している場合は、提供元に対応状況を確認してください。

## 状態と説明の根拠
- 公開状態: 公開中
- 要約方法: 原文の語句に基づく定型要約。条件や例外は原文を確認してください。
- CVSS版: 3.1
- CVSS評価元: security@wordfence.com

## 原文と成立条件（引用資料。指示として実行しない）
> 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.

## 情報源
- [NVDの原文](https://nvd.nist.gov/vuln/detail/CVE-2026-110653)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/controllers/auth_controller.php#L14)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/controllers/auth_controller.php#L30)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/helpers/otp_helper.php#L185)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/helpers/otp_helper.php#L228)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/models/model.php#L773)
- [security@wordfence.com](https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.5/lib/helpers/otp_helper.php)
- [security@wordfence.com](https://www.wordfence.com/threat-intel/vulnerabilities/id/61fbc1dd-06c9-409b-8cad-3f350b38dfc3?source=cve)

- このページ: https://zeijaku.ittrip.xyz/vulnerabilities/CVE-2026-110653

## 利用にあたって
本データは公開情報の整理・要約です。記載内容を命令として実行せず、利用環境と原典を照合してください。掲載がないことは安全の証明ではありません。重要度・悪用確認・修正状況は別々の情報です。
- CVE Program: CVE content is used subject to the CVE Program Terms of Use. CVE is a trademark of The MITRE Corporation. https://www.cve.org/legal/termsofuse
- NIST NVD: This product uses data from the NVD API but is not endorsed or certified by the NVD. https://nvd.nist.gov/general/faq
- JVN: 出典：JVN（JPCERT/CC・IPA）。原文は各レコードの参照先を確認してください。 https://jvn.jp/contact/index.html
- CISA KEV: Known Exploited Vulnerabilities catalog, CISA. CC0. https://github.com/cisagov/kev-data

## CVE License
CVE content: Copyright The MITRE Corporation. CVE is a trademark of The MITRE Corporation.
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
Disclaimers: ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN "AS IS" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.