CVE-2026-8176 HIGH

CVE-2026-8176: LatePoint <= 5.5.1 - Authenticated (Agent+) Privilege Escalation to Administrator via IDOR in OsOrdersController::create_or_update + Unauthenticated Customer-Cabinet Password Reset

Vendor Latepoint
Product LatePoint – Calendar Booking Plugin for Appointments and Events
Weakness CWE-269
Published June 16, 2026
Last update June 16, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Privilege Escalation to Administrator in versions up to, and including, 5.5.1. The plugin chains three independent flaws that together allow an authenticated Agent (Agent+) to overwrite a WordPress Administrator's password without ever invoking an Administrator-only API. This makes it possible for authenticated attackers, with Agent access and above, to elevate their privileges to Administrator.

Explanation of Vulnerability in Simple Terms

02Summary

LatePoint versions up to 5.5.1 contain a privilege management flaw that allows authenticated users with low-level access to perform actions restricted to higher-privilege roles. An attacker with a standard user account can read, modify, or delete sensitive booking and calendar data without proper authorization checks. This affects confidentiality, integrity, and availability of appointment information.

What an attacker can do

03Attacker Capabilities

Read, modify, or delete booking and calendar data beyond their assigned permission level.

Potential impact on your site

04Site Impact

Unauthorized users can access or alter client bookings, appointments, and calendar settings, compromising data integrity and customer trust.

Conditions required to exploit

05Prerequisites

Attacker must have a valid low-privilege user account on the site; no user interaction required.

Key dates

06Disclosure timeline

June 16, 2026 CVE published