| Package | Affected versions | Patched versions |
|---|---|---|
| No affected product versions are listed for this vulnerability yet. | ||
FOSSBilling before 0.8.9 contains a Cross-Site Request Forgery vulnerability in the staff guest login endpoint (POST /api/guest/staff/login) that allows remote attackers to force authentication because checkGuestClientAuthentication() only allowlists client_login and client_create, leaving staff_login without CSRF or Origin validation. Attackers can host an auto-submitting HTML form with attacker-controlled credentials to silently log a victim's browser into the attacker's staff account.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free