CVE-2026-53643

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow low-privileged staff accounts to perform unauthorized actions via admin API endpoints. The root cause is a combination of the `can_always_access` module flag (which grants all staff access to certain modules) and insufficient permission checks or unsafe parameter handling on individual endpoints. Version 0.8.0 contains a fix. Some workarounds are available. Restrict staff accounts to only those who need access to sensitive settings and/or use a reverse proxy or WAF to restrict access to the affected endpoints to trusted IP addresses or higher-privilege roles.

CVSS

No CVSS.

References

Link	Resource
https://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-563q-g4r4-6f9m

Configurations

No configuration.

History

06 Jul 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-06 23:16

Updated : 2026-07-07 15:16

NVD link : CVE-2026-53643

Mitre link : CVE-2026-53643

CVE.ORG link : CVE-2026-53643

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-639

Authorization Bypass Through User-Controlled Key

CWE-862

Missing Authorization

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