Paymenter up to 1.5.0 Checkout Livewire checkoutConfig input validation

Summaryinfo

A vulnerability classified as problematic has been found in Paymenter up to 1.5.0. This vulnerability affects unknown code of the component Checkout Livewire. Performing a manipulation of the argument checkoutConfig results in input validation. This vulnerability is reported as CVE-2026-47198. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Paymenter up to 1.5.0. This affects some unknown processing of the component Checkout Livewire. The manipulation of the argument checkoutConfig with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on integrity, and availability. The summary by CVE is:

Paymenter is a free and open-source webshop solution for management of hosting services. In versions prior to 1.5.1, the checkout component improperly filters URL-writable properties, allowing authenticated users to inject arbitrary key-value pairs into server provisioning parameters. Because bundled server extensions prioritize these user-supplied properties over administrator-defined configurations, a regular user can override hosting plans and resource limits at checkout without special privileges. The Checkout Livewire component's $checkoutConfig property exposed via URL query parameters, only validating keys explicitly defined by an extension's configuration method, allowing any undefined injected keys to bypass validation entirely. These unsanitized keys are then stored directly in the database by the cart component and later passed to server extensions during provisioning, enabling user-injected data to override intended administrator settings. Depending on the active extension, this leads to unauthorized overrides of core resource limits (such as CPU, RAM, storage, or package tiers). No administrative privileges are required to exploit this vulnerability. This issue has been fixed in version 1.5.1.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-47198 since 05/19/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available.

Upgrading to version 1.5.1 eliminates this vulnerability.

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Productinfo

Name

• Paymenter

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5.0

Website

• Product: https://github.com/Paymenter/Paymenter/

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