CVE-2026-27708

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, email, phone, address, company details, VAT number) and service configuration data belonging to other clients. This issue has been fixed in version 0.8.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.0
https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-p36w-9x66-488j

Configurations

No configuration.

History

24 Jun 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 20:16

Updated : 2026-06-25 20:17

NVD link : CVE-2026-27708

Mitre link : CVE-2026-27708

CVE.ORG link : CVE-2026-27708

JSON object : View

Products Affected

No product.

CWE

CWE-284

Improper Access Control

CWE-639

Authorization Bypass Through User-Controlled Key

CWE-862

Missing Authorization

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