CVE-2026-43927

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, a race condition in the cart checkout flow allows an authenticated client to apply a promo code beyond its configured maximum uses. By sending concurrent checkout requests before any single request...

PT-2026-56031

Name of the Vulnerable Software and Affected Versions FOSSBilling versions prior to 0.8.0 Description A race condition in the cart checkout flow allows an authenticated client to apply a promo code more times than its configured maximum limit. By sending concurrent checkout requests before the...