Vulnerability Description
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.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-53643?
CVE-2026-53643 is a documented vulnerability. 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 c...
How severe is CVE-2026-53643?
CVSS scoring is not yet available for CVE-2026-53643. Check NVD for updates.
Is there a patch for CVE-2026-53643?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.