CVE-2026-44585 Paymenter: Broken object level authorization via service reference manipulation on ticket creation

Medium 5.4 Published Updated

Authenticated users can create support tickets referencing other users' services by manipulating service IDs, potentially exposing service details to support staff.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-44585?

CVE-2026-44585 is a medium-severity missing authorization vulnerability in Paymenter, published on 20 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Paymenter is a free and open-source webshop solution for management of hosting services. In versions prior to 1.5.0, the ticket creation endpoint accepts a user-supplied service identifier without enforcing ownership validation, allowing authenticated users to create support tickets referencing services belonging to other accounts by modifying the service ID in the request. An attacker could modify the service ID value in the client-side request and successfully create a ticket associated with another user's service. The vulnerability requires authentication and does not provide direct access to service contents or customer data. However, referenced service information could become visible to support personnel handling the ticket. Successful exploitation could allow an authenticated user to: create support tickets referencing services belonging to other users, potentially cause support staff to interact with or review unrelated customer services. The vulnerability did not allow direct access to another user's service, modification of another user's service or retrieval of confidential service data through the vulnerable endpoint itself. This issue has been fixed in version 1.5.0.

Weakness: CWE-862, CWE-639

Which versions are affected by CVE-2026-44585?

2 open source packages ship an affected version, including paymenter/paymenter.

PackageAffectedFixed in
paymenter/paymenter PackagistAll versions1.5.0
paymenter/paymenter PackagistAll versions1.5.0

How do I fix CVE-2026-44585?

Upgrade paymenter/paymenter to 1.5.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-44585 being exploited?

There is no known exploitation of CVE-2026-44585 in the wild and no public exploit code.

Sources

Also known as GHSA-x93q-x9pc-w5hw.

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