CVE-2026-53640 - FOSSBilling missing authorization checks on read-only admin API endpoints expose sensitive staff, client, and redirect data
CVE ID :CVE-2026-53640
Published : July 6, 2026, 10:30 p.m. | 14 minutes ago
Description :FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, low-privileged staff accounts may read sensitive data via admin API endpoints that lack permission checks. While sibling write endpoints correctly enforce fine-grained permissions, the corresponding read endpoints have no authorization guards. Version 0.8.0 contains a fix. Some workarounds are available. Restrict staff accounts to only those who need access to sensitive data and/or use a reverse proxy or WAF to restrict access to the affected endpoints.
Severity: 0.0 | NA
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Published : July 6, 2026, 10:30 p.m. | 14 minutes ago
Description :FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, low-privileged staff accounts may read sensitive data via admin API endpoints that lack permission checks. While sibling write endpoints correctly enforce fine-grained permissions, the corresponding read endpoints have no authorization guards. Version 0.8.0 contains a fix. Some workarounds are available. Restrict staff accounts to only those who need access to sensitive data and/or use a reverse proxy or WAF to restrict access to the affected endpoints.
Severity: 0.0 | NA
Visit the link for more details, such as CVSS details, affected products, timeline, and more...