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, 5.6.3 This is due to an Insecure Direct Object Reference (IDOR) in the create_or_update() function of OsOrdersController, which allows an authenticated Agent to supply an arbitrary order[customer_id] and overwrite any LatePoint customer's email field (including one linked to a WordPress Administrator's account) through the public-scope customer set_data() call, combined with a missing role verification in OsAuthHelper::authorize_customer() which logs in the linked WordPress user without checking its role. This makes it possible for authenticated attackers, with custom (Agent)-level access and above, to elevate their privileges to Administrator.
LatePoint – Calendar Booking Plugin for Appointments and Events versions up to and including 5.5.1 contain a privilege escalation vulnerability. Authenticated users with Agent-level access can chain three independent flaws to overwrite an Administrator's password without accessing Administrator-only APIs. This allows attackers to elevate their privileges to Administrator. The vulnerability is tracked as CVE-2026-8176 and has a high severity rating with a CVSS score of 7.5.
LatePoint – Calendar Booking Plugin for WordPress versions up to and including 5.6.0 is vulnerable to a Cross-Site Request Forgery (CSRF) attack due to missing or incorrect nonce validation on the change_status function. This vulnerability allows unauthenticated attackers to change the status of arbitrary invoices, including marking unpaid invoices as paid, by tricking a site administrator into performing an action such as clicking a malicious link.
The LatePoint plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 5.3.2. This is due to missing nonce verification on the request_cancellation() function. This makes it possible for unauthenticated attackers to cancel a logged-in customer's bookings via a forged request, granted they can trick the customer into performing an action such as clicking on a link.
The LatePoint plugin for WordPress is vulnerable to Account Takeover via Weak Password Recovery Mechanism in the unauthenticated guest booking flow in versions up to, and including, 5.5.0 This is due to the save_connected_wordpress_user() function propagating a LatePoint customer's email address to its linked WordPress user account via wp_update_user() without any ownership verification, combined with the guest booking flow's ability to overwrite an existing customer's email through phone-based merge without authentication. This makes it possible for unauthenticated attackers to overwrite the email address of a non-super-admin WordPress user account that is not yet linked to a LatePoint customer, enabling full account takeover by subsequently triggering the standard WordPress password-reset flow to the attacker-controlled address granted the plugin is configured with WordPress user integration enabled, phone-based contact merging, and customer authentication disabled. Administrator accounts on single-site installs are not affected.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'booking_form_page_url' parameter in all versions up to, and including, 5.5.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The malicious activity log entry is written to the database even when Stripe is not configured, because the latepoint_order_intent_created action hook fires before the Stripe Connect account ID is validated, meaning a fully functional Stripe integration is not required for exploitation.
The LatePoint plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to and including 5.5.0. This is due to insufficient input sanitization on the customer cabinet profile update endpoint — where raw POST parameters (first_name, last_name, phone, notes) bypass sanitization because OsCustomerModel does not override params_to_sanitize(), causing set_data() to store unsanitized values verbatim in the database — combined with insufficient output escaping in generate_preview(), which injects those stored values into notification template HTML via str_replace() without any esc_html() call before echoing the result. This makes it possible for authenticated attackers with customer-level access or above to inject arbitrary web scripts into the admin notification preview panel that execute in an administrator's or agent's browser whenever a notification template referencing customer variables such as {{customer_full_name}}, {{customer_first_name}}, {{customer_last_name}}, {{customer_phone}}, or {{customer_notes}} is previewed.
CVE-2026-6741 is a high-severity privilege escalation vulnerability in the LatePoint – Calendar Booking Plugin for WordPress versions up to 5.4.1. The flaw arises from a missing authorization check in the execute() method for the connect-customer-to-wp-user ability. Authenticated users with the latepoint_agent role can exploit this to link any LatePoint customer record to an administrator's WordPress account. This linkage enables them to reset the administrator's password via the customer password-reset flow, potentially leading to full site takeover.
The LatePoint WordPress plugin up to version 5.3.2 contains an insecure direct object reference vulnerability (CWE-639) in the OsStripeConnectController::create_payment_intent_for_transaction action. This action is publicly accessible without authentication and allows unauthenticated attackers to enumerate invoice IDs and create unauthorized transaction intent records. Sensitive financial data including invoice IDs, order IDs, customer IDs, charge amounts, and Stripe payment intent client secrets can be exposed. Other invoice-related actions in the plugin require cryptographic access keys, but this particular action does not, leading to the authorization bypass. The vulnerability has a CVSS score of 5.3 (medium severity). No official patch or remediation guidance is currently available from the vendor.
CVE-2026-4785 is a stored cross-site scripting (XSS) vulnerability in the LatePoint Calendar Booking Plugin for WordPress, affecting versions up to 5.3.0. The flaw exists in the handling of the 'button_caption' parameter within the [latepoint_resources] shortcode when the 'items' parameter is set to 'bundles'. Authenticated users with contributor-level access or higher can inject malicious scripts that execute when other users view the affected pages. The vulnerability has a CVSS score of 6.4, indicating a medium severity level. No official patch or remediation guidance has been provided by the vendor at this time.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 5.2.7. This is due to missing or incorrect nonce validation on the reload_preview() function. This makes it possible for unauthenticated attackers to update settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to SQL Injection via the JSON Import in all versions up to, and including, 5.2.7 due to insufficient validation on the user-supplied JSON data. This makes it possible for authenticated attackers, with Administrator-level access and above, to execute arbitrary SQL queries on the database that can be used to extract information via time-based techniques, drop tables, or modify data.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to privilege escalation via password reset in all versions up to, and including, 5.2.7. This is due to the plugin allowing users with a LatePoint Agent role, who are creating new customers to set the 'wordpress_user_id' field. This makes it possible for authenticated attackers, with Agent-level access and above, to gain elevated privileges by linking a customer to the arbitrary user ID, including administrators, and then resetting the password.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 5.2.5. This is due to the 'call_by_route_name' function in the routing layer only validating user capabilities without enforcing nonce verification. This makes it possible for unauthenticated attackers to perform multiple administrative actions via forged requests granted they can trick a site administrator into performing an action such as clicking on a link.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the load_step() function in all versions up to, and including, 5.2.6. This makes it possible for unauthenticated attackers to view booking information including customer names, email addresses, phone numbers, appointment times, and service details.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the customer profile fields in all versions up to, and including, 5.2.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator views the customer's activity history.
The LatePoint plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 5.1.94. This is due to missing nonce validation on the change_password() function of its customer_cabinet__change_password AJAX route. The plugin hooks this endpoint via wp_ajax and wp_ajax_nopriv but does not verify a nonce or user capability before resetting the user’s password. This makes it possible for unauthenticated attackers who trick a logged-in customer (or, with “WP users as customers” enabled, an administrator) into visiting a malicious link to take over their account.
The LatePoint plugin for WordPress is vulnerable to Authentication Bypass due to insufficient identity verification within the steps__load_step route of the latepoint_route_call AJAX endpoint in all versions up to, and including, 5.1.94. The endpoint reads the client-supplied customer email and related customer fields before invoking the internal login handler without verifying login status, capability checks, or a valid AJAX nonce. This makes it possible for unauthenticated attackers to log into any customer’s account.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' parameter of the 'latepoint_resources' shortcode in all versions up to, and including, 5.1.94 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘service[name]’ parameter in all versions up to, and including, 5.1.94 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.