CVE-2026-53642 FOSSBilling: Unverified clients can access client-area pages when email confirmation is required

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 emailapproved = 0 can access all client-area pages e.g. /client/balance,...

CVE-2026-40495

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 leak the exact system version through asset cache buster parameters in HTML output, bypassing the hideversionpublic security setting. The FOSSBilling version is embedded in the query string of every...