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CVE-2026-53642

MEDIUM
5.3
CVSS 4.0
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.

Metadata

CVE ID
CVE-2026-53642
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-09 20:16 UTC
Published
2026-07-06 22:45 UTC
Last updated
2026-07-06 22:45 UTC
Primary CWE
CWE-863
CWE-863: Incorrect Authorization
Vendor / Product
FOSSBilling / FOSSBilling
Sources
cve.org  ·  NVD

Severity & Metrics

5.3 MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products (1)
VendorProductPlatformVersions
FOSSBilling FOSSBilling — >= 0.5.6, < 0.8.0
Weakness (CWE)
CWESourceDescription
CWE-863 cna CWE-863: Incorrect Authorization
CVSS scores (1)
ScoreSeverityVersionSourceVector
5.3 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References (1)
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