CVE-2026-27604 | FOSSBilling up to 0.7.x Reverse Proxy /api/system authorization (GHSA-57mv-jm88-66jc)

A vulnerability marked as problematic has been reported in FOSSBilling up to 0.7.x. This issue affects some unknown processing of the file /api/system of the component Reverse Proxy Handler. Performing a manipulation results in missing authorization.

This vulnerability is known as CVE-2026-27604. Remote exploitation of the attack is possible. No exploit is available.

It is suggested to upgrade the affected component.