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-2026-53644

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...

PT-2026-56037

Name of the Vulnerable Software and Affected Versions FOSSBilling versions 0.5.3 through 0.7.2 Description Authenticated clients can read and reset API key service secrets for orders that are not in an active state, such as suspended or canceled. This occurs due to missing order-state validation ...