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Description

FOSSBilling is a free, open-source billing and client management system. Versions 0.5.3 through 0.7.2 allow authenticated clients to both read and reset API key service secrets for orders that are no longer in an `active` state (e.g., `suspended`, `canceled`). The root cause is missing order-state validation in two client API endpoints, despite an `isActive()` helper already existing in the `Serviceapikey` module and the frontend UI correctly gating access on `order.status == 'active'`. Version 0.8.0 contains a fix. Some workarounds are available. If the `Serviceapikey` module is not needed, uninstall it to remove the affected endpoints. One may also use a reverse proxy or WAF to restrict access to `/api/client/order/service` and `/api/client/serviceapikey/reset` based on application-level order-state logic.

PUBLISHED Reserved 2026-06-09 | Published 2026-07-06 | Updated 2026-07-06 | Assigner GitHub_M




HIGH: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-639: Authorization Bypass Through User-Controlled Key

Product status

>= 0.5.3, < 0.8.0
affected

References

github.com/...illing/security/advisories/GHSA-qf6j-vq68-qmfh

cve.org (CVE-2026-53644)

nvd.nist.gov (CVE-2026-53644)

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