CVE WatchJul 7, 2026

CVE-2026-53642

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when the "Require Email Confirmati

CVSS

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No CVSS

EPSS

0.4%

p28

KEV

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Exploit Today

0-100

Published: Jul 6, 2026 · Last modified: Jul 7, 2026 · CWE-863

EPSS · 30d

0.2%EPSS · 30 days0.4%

2026-08-182026-09-15

Technical description

FOSSBilling is a free, open-source billing and client management system. In versions 0.5.6 through 0.7.2, when the "Require Email Confirmation" setting is enabled, a logged-in client with an unverified email address (`email_approved = 0`) can access all client-area pages (e.g. `/client/balance`, `/client/order/list`, `/client/invoice`) and read real account data, including wallet balances and transaction history. The API-side enforcement correctly restricts unverified clients to only profile-related endpoints, but the page-side enforcement is overly permissive, allowing any request whose path starts with `/client`. Version 0.8.0 contains a fix. No known workarounds that don't involve modifying the source code are available.

Official references

github.comhttps://github.com/FOSSBilling/FOSSBilling/security/advisories/GHSA-7v47-rh46-w923

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