TrueBooker <= 1.2.3 - Missing Authorization to Unauthenticated Arbitrary User Email Modification via 'admin_addcustomer' AJAX Action (CVE-2026-14349) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-14349

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

Answer in brief

CVE-2026-14349 records a Unknown severity vulnerability in TrueBooker <= 1.2.3 - Missing Authorization to Unauthenticated Arbitrary User Email Modification via 'admin_addcustomer' AJAX Action. The current sources do not mark it as known exploited. The current feed maps themetechmount/TrueBooker – Appointment Booking and Scheduler System (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Sep 16, 2026Source checked Sep 16, 2026First seen by HOL Sep 16, 2026Material review Sep 16, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps themetechmount/TrueBooker – Appointment Booking and Scheduler System (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
themetechmount/TrueBooker – Appointment Booking and Scheduler Systemgeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for themetechmount/TrueBooker – Appointment Booking and Scheduler System.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 16, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.