LatePoint Appointment Booking Plugin up to 5.7.3 on WordPress Settings Update update settings privileges management

Summaryinfo

A vulnerability classified as critical was found in LatePoint Appointment Booking Plugin up to 5.7.3. This affects the function OsSettingsController::update of the component Settings Update. Such manipulation of the argument Settings leads to privileges management. This vulnerability is documented as CVE-2026-104766. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in LatePoint Appointment Booking Plugin up to 5.7.3 and classified as critical. Affected by this issue is the function OsSettingsController::update of the component Settings Update. The manipulation of the argument settings with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 5.7.3. This is due to the `OsSettingsController::update()` handler iterating over attacker-supplied `settings` parameters without an allowlist of permitted setting names or values, and `OsSettingsHelper::prepare_value()` performing no role allowlist validation before persisting the `default_wp_role_for_customer` setting — a restriction that exists only in the UI dropdown and is never enforced server-side. This makes it possible for authenticated attackers holding a LatePoint role with the `settings__edit` capability (such as an agent or custom role) to overwrite the default WordPress role for new customers with `administrator`, causing any subsequently self-registered LatePoint customer account to be created with full WordPress administrator privileges. Exploitation requires that a WordPress administrator has granted the `settings__edit` capability to a LatePoint agent or custom role, and that a new customer account is registered through LatePoint after the malicious setting change is persisted.

The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-104766 since 10/02/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/10/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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