AUGUST 21, 2026
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Case File

CVE-2026-43925

MEDIUM · CVSS 6.9 EPSS 0.30% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-06 · Last synced 2026-08-05

CyberRota Analysis

AI-Generated

FOSSBilling versions prior to 0.8.0 are vulnerable to an unauthenticated mass assignment flaw in the client self-registration endpoint, allowing attackers to assign themselves to arbitrary client groups. This vulnerability can be exploited to gain unauthorized access to group-restricted discounts, potentially leading to financial losses for businesses. Organizations using FOSSBilling should prioritize upgrading to version 0.8.0 or implementing workarounds to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-43925
Severity
MEDIUM
CVSS
6.9
EPSS
0.30%

Original NVD 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).