CVE-2026-5234 MEDIUM

CVE-2026-5234: LatePoint <= 5.3.2 - Insecure Direct Object Reference to Unauthenticated Sensitive Financial Data Exposure via Sequential Invoice ID

Vendor Latepoint
Product LatePoint – Calendar Booking Plugin for Appointments and Events
Weakness CWE-639 · IDOR
Published April 17, 2026
Last update April 17, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The LatePoint plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.3.2. The vulnerability exists because the OsStripeConnectController::create_payment_intent_for_transaction action is registered as a public action (no authentication required) and loads invoices by sequential integer invoice_id without any access_key or ownership verification. This is in contrast to other invoice-related actions (view_by_key, payment_form, summary_before_payment) in OsInvoicesController which properly require a cryptographic UUID access_key. This makes it possible for unauthenticated attackers to enumerate valid invoice IDs via an error message oracle, create unauthorized transaction intent records in the database containing sensitive financial data (invoice_id, order_id, customer_id, charge_amount), and on sites with Stripe Connect configured, the response also leaks Stripe payment_intent_client_secret tokens, transaction_intent_key values, and payment amounts for any invoice.

Explanation of Vulnerability in Simple Terms

02Summary

LatePoint versions 5.3.2 and earlier contain an integrity vulnerability allowing network-based modification of data without authentication. The flaw requires no user interaction and affects the plugin's core functionality. Site administrators should update to a version newer than 5.3.2 to remediate the issue.

What an attacker can do

03Attacker Capabilities

Modify plugin data or settings over the network without logging in.

Potential impact on your site

04Site Impact

Attackers can alter booking data, calendar settings, or appointment information without authorization.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

April 17, 2026 CVE published
April 17, 2026 Record updated