CVE-2026-53648 FOSSBilling: Downloadable product files can be overwritten through filename collisions

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.1, downloadable product files are stored using a deterministic filename-derived path. When an administrator uploads a file for a downloadable product, FOSSBilling stores the file as md5 under the uploads...

CVE-2026-53648 FOSSBilling: Downloadable product files can be overwritten through filename collisions

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.1, downloadable product files are stored using a deterministic filename-derived path. When an administrator uploads a file for a downloadable product, FOSSBilling stores the file as md5 under the uploads...

CVE-2026-53647

CVE-2026-53647 affects FOSSBilling 0.5.3–0.7.2 where the Guest serviceapikey/get_info endpoint is accessible without authentication. An unauthenticated caller with a valid API key can retrieve all custom_* fields stored in the key’s database record, potentially exposing pricing tiers, feature fla...

CVE-2026-53647 FOSSBilling vulnerable to unauthenticated API key configuration disclosure via guest Serviceapikey get_info endpoint

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.3 through 0.7.2, the Guest serviceapikey/getinfo API endpoint is accessible without authentication. Any caller with a valid API key can retrieve all custom configuration parameters custom fields stored in the...

CVE-2026-53647

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.3 through 0.7.2, the Guest serviceapikey/getinfo API endpoint is accessible without authentication. Any caller with a valid API key can retrieve all custom configuration parameters custom fields stored in the...

CVE-2026-53647 FOSSBilling vulnerable to unauthenticated API key configuration disclosure via guest Serviceapikey get_info endpoint

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.3 through 0.7.2, the Guest serviceapikey/getinfo API endpoint is accessible without authentication. Any caller with a valid API key can retrieve all custom configuration parameters custom fields stored in the...

CVE-2026-53646 FOSSBilling: Client password reset token reuse allows persistent account takeover

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when a ClientPasswordReset record already exists for a client from a previous unexpired reset request, subsequent calls to the resetpassword guest API endpoint reuse the existing token instea...

CVE-2026-53646 FOSSBilling: Client password reset token reuse allows persistent account takeover

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when a ClientPasswordReset record already exists for a client from a previous unexpired reset request, subsequent calls to the resetpassword guest API endpoint reuse the existing token instea...

CVE-2026-53646

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when a ClientPasswordReset record already exists for a client from a previous unexpired reset request, subsequent calls to the resetpassword guest API endpoint reuse the existing token instea...

EUVD-2026-41971

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when a ClientPasswordReset record already exists for a client from a previous unexpired reset request, subsequent calls to the resetpassword guest API endpoint reuse the existing token instea...

CVE-2026-53646

CVE-2026-53646 affects FOSSBilling 0.5.6–0.7.2, where a ClientPasswordReset record from a prior unexpired request causes subsequent reset_password calls to reuse the original token. The 15-minute validity window is tied to the first request’s created_at, not the latest email, allowing an attacker...

CVE-2026-53646 FOSSBilling: Client password reset token reuse allows persistent account takeover

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when a ClientPasswordReset record already exists for a client from a previous unexpired reset request, subsequent calls to the resetpassword guest API endpoint reuse the existing token instea...

CVE-2026-53645 FOSSBilling's missing self-edit prevention in staff permission management allows persistent privilege escalation

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow a low-privileged staff account to grant arbitrary module permissions to itself through the admin API, resulting in persistent privilege escalation. A staff user that only has...

CVE-2026-53645 FOSSBilling's missing self-edit prevention in staff permission management allows persistent privilege escalation

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow a low-privileged staff account to grant arbitrary module permissions to itself through the admin API, resulting in persistent privilege escalation. A staff user that only has...

EUVD-2026-41970

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow a low-privileged staff account to grant arbitrary module permissions to itself through the admin API, resulting in persistent privilege escalation. A staff user that only has...

CVE-2026-53645

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow a low-privileged staff account to grant arbitrary module permissions to itself through the admin API, resulting in persistent privilege escalation. A staff user that only has...

CVE-2026-53645

CVE-2026-53645 affects FOSSBilling prior to 0.8.0. A low-privileged staff member with staff.create_and_edit_staff can call /api/admin/staff/permissions_update to modify their own permissions, bypassing RBAC and enabling persistent privilege escalation. Version 0.8.0 patches the issue. Workarounds...

CVE-2026-53645 FOSSBilling's missing self-edit prevention in staff permission management allows persistent privilege escalation

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 allow a low-privileged staff account to grant arbitrary module permissions to itself through the admin API, resulting in persistent privilege escalation. A staff user that only has...

CVE-2026-53644

FOSSBilling is a free, open-source billing and client management system. Versions 0.5.3 through 0.7.2 allow authenticated clients to both read and reset API key service secrets for orders that are no longer in an active state e.g., suspended, canceled. The root cause is missing order-state...

CVE-2026-53644 FOSSBilling's missing order-state validation allows clients to read and reset API key secrets for non-active orders

FOSSBilling is a free, open-source billing and client management system. Versions 0.5.3 through 0.7.2 allow authenticated clients to both read and reset API key service secrets for orders that are no longer in an active state e.g., suspended, canceled. The root cause is missing order-state...