CVE-2026-47741 — Shopper: Race condition on Discount.usage_limit allows silent over-redemption
Shopper is a Headless e-commerce Admin Panel. Prior to 2.8.0, CreateOrderFromCartAction::execute previously created the Order row before checking and incrementing the discount's…
Published: 2026-05-29 · CVSS: 5.9 · CVSS 3.1
Shopper is a Headless e-commerce Admin Panel. Prior to 2.8.0, CreateOrderFromCartAction::execute previously created the Order row before checking and incrementing the discount's total_use counter. Under concurrent checkout pressure (Black Friday, flash sale, viral coupon), the global usage_limit was silently exceeded: orders were committed with the discount fully applied to price_amount while the counter blocked at usage_limit. The merchant had no signal that an over-redemption had occurred. This vulnerability is fixed in 2.8.0.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7