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CVE-2026-14349— TrueBooker <= 1.2.3 - Missing Authorization to Unauthenticated Arbitrary User Email Modification via 'admin_addcustomer' AJAX Action

Quick assessment

Affected
themetechmount TrueBooker – Appointment Booking and Scheduler System
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.

TrueBooker – Appointment Booking and Scheduler System（WordPress 插件）在所有 1.2.3 及更早版本中存在授权绕过漏洞。该漏洞源于插件未能正确验证执行特定操作的用户是否已获得相应授权。这使得未认证的 attackers（攻击者）能够修改任意用户账户（包括管理员账户）的电子邮件地址，进而利用该邮箱重置账户密码并获取账户访问权限。

CVSS 9.8 · Critical
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I. Basic Information for CVE-2026-14349

Vulnerability Information
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Vulnerability Title
TrueBooker <= 1.2.3 - Missing Authorization to Unauthenticated Arbitrary User Email Modification via 'admin_addcustomer' AJAX Action
Source: CVE Program / CVE List V5
Vulnerability Description
The TrueBooker – Appointment Booking and Scheduler System plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.2.3. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to modify the email address of arbitrary user accounts, including administrators, which can be leveraged to reset the account's password and gain access to it.
Source: 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:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
themetechmount TrueBooker – Appointment Booking and Scheduler System 0 ~ 1.2.3 -

II. Public POCs for CVE-2026-14349

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III. Intelligence Information for CVE-2026-14349

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Patches & Fixes for CVE-2026-14349 (1)

Other References for CVE-2026-14349 (1)

IV. Related Vulnerabilities

Same product: TrueBooker – Appointment Booking and Scheduler System
Same vendor: themetechmount
Same weakness: CWE-862

V. Comments for CVE-2026-14349

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