LatePoint Appointment Booking Plugin up to 5.7.3 on WordPress params[customer][first_name] information disclosure

Summaryinfo

A vulnerability was found in LatePoint Appointment Booking Plugin up to 5.7.3 and classified as problematic. This vulnerability affects unknown code. Such manipulation of the argument params[customer][first_name] leads to information disclosure. This vulnerability is traded as CVE-2026-103380. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in LatePoint Appointment Booking Plugin up to 5.7.3. It has been rated as problematic. Affected by this issue is an unknown code. The manipulation of the argument params[customer][first_name] with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.7.3 via the 'params[customer][first_name]' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract privileged booking data including the administrator-only admin_notes field, assigned agent internal contact details, transaction tokens, and payment request URLs delivered via rendered notification emails. A LatePoint customer can exploit this by storing a template placeholder such as {{customer_admin_notes}} in their own first_name field via the customer_cabinet__update route, then triggering the password-reset email flow to receive the expanded value in the resulting notification.

The advisory is shared for download at wordfence.com. This vulnerability is handled as CVE-2026-103380 since 09/30/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• LatePoint

Name

• Appointment Booking Plugin

Version

• 5.7.0
• 5.7.1
• 5.7.2
• 5.7.3

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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