melograno Booking for Appointments and Events Calendar Plugin /users/customers/ improper authorization

Summaryinfo

A vulnerability classified as critical was found in melograno Booking for Appointments and Events Calendar Plugin up to 2.4.4. This impacts an unknown function of the file /users/customers/. Executing a manipulation can lead to improper authorization. This vulnerability appears as CVE-2026-14311. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in melograno Booking for Appointments and Events Calendar Plugin up to 2.4.4 and classified as critical. This vulnerability affects an unknown function of the file /users/customers/. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Booking for Appointments and Events Calendar – Amelia plugin for WordPress is vulnerable to unauthorized access and modification of data due to a missing ownership verification on /users/customers/<id> endpoint in all versions up to, and including, 2.4.4. This makes it possible for authenticated attackers, with wpamelia-provider role, to view and modify arbitrary customers, including password reset. Takeover of WordPress user accounts, with the roles up to Editor, is also possible if that user had made an Amelia booking. This vulnerability affects only the Premium version of the plugin, where the Employee Panel is present.

The advisory is available at wordfence.com. This vulnerability was named CVE-2026-14311 since 07/01/2026. The exploitation appears to be easy. The attack can be initiated 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 09/18/2026). This vulnerability is assigned to T1548.002 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.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-82496). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• melograno

Name

• Booking for Appointments and Events Calendar Plugin

Version

• 2.4.0
• 2.4.1
• 2.4.2
• 2.4.3
• 2.4.4

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
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• 🔒

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Entryinfo

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

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