CVE-2026-43925 - FOSSBilling: Mass assignment of group_id in guest client registration allows unauthorized promo code use
CVE ID :CVE-2026-43925
Published : July 6, 2026, 10:16 p.m. | 28 minutes ago
Description :FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, an unauthenticated mass assignment vulnerability in the client self-registration endpoint allows any visitor to assign themselves to an arbitrary client group during sign-up. Because client groups can gate promo code eligibility, an attacker may apply group-restricted discount codes and receive unauthorized discounts. Version 0.8.0 contains a patch. As a workaround, administrators can either remove group restrictions from promo codes or disable client self-registration (Settings → Clients → Disable signup).
Severity: 6.9 | MEDIUM
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Published : July 6, 2026, 10:16 p.m. | 28 minutes ago
Description :FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, an unauthenticated mass assignment vulnerability in the client self-registration endpoint allows any visitor to assign themselves to an arbitrary client group during sign-up. Because client groups can gate promo code eligibility, an attacker may apply group-restricted discount codes and receive unauthorized discounts. Version 0.8.0 contains a patch. As a workaround, administrators can either remove group restrictions from promo codes or disable client self-registration (Settings → Clients → Disable signup).
Severity: 6.9 | MEDIUM
Visit the link for more details, such as CVSS details, affected products, timeline, and more...