CVE-2026-53642

FOSSBilling: Unverified clients can access client-area pages when email confirmation is required

Published: Jul 6, 2026Updated: Jul 7, 2026 Sources: CVE List NVDCWE-863

N/ACVSS

NVD MITRE

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.

No summary for this CVE yet.

Weaknesses

CWE-863

Affected Products

FOSSBilling

oss-project

FOSSBillingOn-prem

Web & CMS Plugins / ecommerce-platform

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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MITRE ATT&CK

2 techniques

Initial Access

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References

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

github.com

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