WordPress security changelog
MEDIUM CVE-2026-39663 Deferred

TrueBooker: A security weakness

TrueBooker is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is <= 1.1.5.

CVE / CNA score 5.3 CVSS 3.1 · audit@patchstack.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
TrueBooker
Plugin slug
truebooker-appointment-booking
Affected
<= 1.1.5
Safe version
> 1.1.5
Published
Apr 08, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Apr 08, 2026 and is one of 6 known issues for this plugin.

Patch or disable the affected component.

Update TrueBooker to a release after 1.1.5, or disable and remove it until a fixed version is available.

Technical description

Missing Authorization vulnerability in themetechmount TrueBooker truebooker-appointment-booking allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects TrueBooker: from n/a through <= 1.1.5.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary and upstream sources