CVE-2026-18441
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk16th percentile - higher than 16% of all known CVEs
Summary
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to and including 5.6.9 via the set_customer_object due to missing validation on a user controlled key. This allows unauthenticated attackers to enumerate arbitrary customer records and disclose personally identifiable information - including first name, last name, email address, and phone number - by iterating the customer[id] parameter. This issue is exploitable only when the site is configured with customer authentication disabled (guest checkout enabled).
Risk Assessment
Exposure of customer PII can violate privacy and lead to GDPR or other regulatory breaches, as well as phishing attacks against customers.
Recommendation
Update the plugin to a patched version. If not available, disable guest checkout or implement additional authorization mechanisms.
Other vulnerabilities in LatePoint
See all- CVE-2026-5356High
The LatePoint plugin for WordPress up to version 5.4.0 has an improper input validation vulnerability in the Stripe Connect payment processor. This allows unauthenticated attackers to pay arbitrary amounts by supplying a previously successful PaymentIntent token.
- CVE-2026-57714Critical
The LatePoint plugin for WordPress contains a Blind SQL Injection vulnerability due to improper neutralization of special elements in SQL commands. This issue affects versions up to and including 5.6.3.
- CVE-2026-13471Medium
The LatePoint – Calendar Booking Plugin for Appointments and Events plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to and including 5.6.3 via the LatePointAbilityDeleteBooking::execute due to missing validation on a user controlled key. Attackers with LatePoint Agent-level access or above can read bookings and customer PII (full name, email, phone, and notes) assigned to other agents, and delete arbitrary bookings. This vulnerability is only exploitable when an administrator has enabled the Abilities API toggles.
- CVE-2026-5391Medium
The LatePoint plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'btn_wrapper_classes' attribute of the 'latepoint_resources' shortcode in all versions up to, and including, 5.3.2. This is due to insufficient input sanitization and output escaping in the 'locations' branch of the 'shortcode_latepoint_resources' function. 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.
- CVE-2026-11398Medium
The LatePoint plugin for WordPress up to version 5.6.1 is vulnerable to authorization bypass. Unauthenticated attackers can modify personally identifiable information (first name, last name, phone number, and notes) of any existing customer record, including administrator accounts, by submitting the booking form with a known email address. Exploitation requires guest bookings to be enabled.
- CVE-2026-12657Medium
The LatePoint plugin for WordPress up to version 5.6.2 is vulnerable to Insecure Direct Object Reference (IDOR) via the 'service_id' parameter. Missing validation allows unauthenticated attackers to create approved bookings for admin/agent-only services, consuming restricted capacity.
- CVE-2026-49083High
LatePoint versions up to 5.5.1 contain a vulnerability that allows privilege escalation for contributors.
- CVE-2026-7652Medium
The LatePoint plugin for WordPress up to version 5.5.0 is vulnerable to account takeover due to a weak password recovery mechanism in the unauthenticated guest booking flow. The save_connected_wordpress_user() function propagates a LatePoint customer's email to the linked WordPress user account without ownership verification, and the guest booking flow can overwrite an existing customer's email via phone-based merge without authentication.
Original NVD description (English source)
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.6.9 via the set_customer_object due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to enumerate arbitrary customer records and disclose personally identifiable information - including first name, last name, email address, and phone number - by iterating the customer[id] parameter. This issue is exploitable only when the site is configured with customer authentication disabled (guest checkout enabled).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

