{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-27708/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-24T19:24:50.417Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-27708","@id":"https://www.cve.org/CVERecord?id=CVE-2026-27708","description":"FOSSBilling is a free, open-source billing and client management system. In versions 0.7.2 and prior, the Servicecustom Client API's __call method accepts an order_id parameter and fetches the associated order without verifying the authenticated client owns it, potentially exposing cross-client data through IDOR. An authenticated client can access any other client's custom service by guessing sequential order IDs. This can lead to a confidentiality breach — attackers can read client PII (name, e"},"products":[{"@id":"cpe:2.3:a:fossbilling:fossbilling:\\<_0.8.0:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:fossbilling:fossbilling:\\<_0.8.0:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"No fixed version is published yet; monitor the upstream advisory.","timestamp":"2026-06-24T19:24:50.417Z"}]}