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).
Metrics
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References
History
Mon, 06 Jul 2026 22:15:00 +0000
| Type | Values Removed | Values Added |
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| 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). | |
| Title | FOSSBilling: Mass assignment of group_id in guest client registration allows unauthorized promo code use | |
| Weaknesses | CWE-915 | |
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| Metrics |
cvssV4_0
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-06T21:41:00.174Z
Reserved: 2026-05-04T16:59:09.089Z
Link: CVE-2026-43925
Vulnrichment
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Redhat
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OpenCVE Enrichment
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