FOSSBilling — Vulnerabilities & Security Advisories 21

FOSSBilling serves as an open-source billing and invoicing platform for web hosting and SaaS businesses. Historically, it has been susceptible to multiple remote code execution vulnerabilities, cross-site scripting (XSS), privilege escalation flaws, and insecure direct object references. The platform's 11 recorded CVEs highlight recurring issues in input validation, access control, and session management. While no major public security incidents have been documented, the consistent pattern of vulnerabilities suggests developers should implement strict input sanitization, enforce proper authentication mechanisms, and regularly update the system to mitigate potential exploitation risks.